diff --git a/src/Types/Generator.php b/src/Types/Generator.php
index ea276be..ff1c07a 100644
--- a/src/Types/Generator.php
+++ b/src/Types/Generator.php
@@ -42,6 +42,7 @@ protected function getMethodsDefinitions($boot, $source)
         $methods = '';
         $source = str_replace('\\', '/', realpath($source));
         $sourceLength = strlen($source);
+        $files = array();
 
         foreach ($this->getMethods($boot) as $name => $closure) {
             try {
@@ -50,17 +51,57 @@ protected function getMethodsDefinitions($boot, $source)
                 continue;
             }
 
-            $file = str_replace('\\', '/', $function->getFileName());
+            $file = $function->getFileName();
+
+            if (!isset($files[$file])) {
+                $files[$file] = file($file);
+            }
+
+            $lines = $files[$file];
+            $file = str_replace('\\', '/', $file);
 
             if (substr($file, 0, $sourceLength + 1) !== "$source/") {
                 continue;
             }
 
             $file = substr($file, $sourceLength + 1);
-
             $parameters = implode(', ', array_map(array($this, 'dumpParameter'), $function->getParameters()));
             $methodDocBlock = trim($function->getDocComment() ?: '');
+            $length = $function->getStartLine() - 1;
+            $code = array_slice($lines, 0, $length);
             $className = '\\'.str_replace('/', '\\', substr($file, 0, -4));
+
+            for ($i = $length - 1; $i >= 0; $i--) {
+                if (preg_match('/^\s*(public|protected)\s+function\s+(\S+)\(.*\)(\s*\{)?$/', $code[$i], $match)) {
+                    if ($name !== $match[2]) {
+                        $method = new \ReflectionMethod($className, $name);
+                        $methodFile = $method->getFileName();
+
+                        if (!isset($files[$methodFile])) {
+                            $files[$methodFile] = file($methodFile);
+                        }
+
+                        $length = $method->getEndLine() - 1;
+                        $lines = $files[$methodFile];
+                        $code = array_slice($lines, 0, $length);
+
+                        for ($i = $length - 1; $i >= 0; $i--) {
+                            if (preg_match('/^\s*(public|protected)\s+function\s+(\S+)\(.*\)(\s*\{)?$/', $code[$i], $match)) {
+                                break;
+                            }
+                        }
+
+                        $code = implode('', array_slice($code, $i));
+
+                        if (preg_match('/(\/\*\*[\s\S]+\*\/)\s+return\s/U', $code, $match)) {
+                            $methodDocBlock = $match[1];
+                        }
+                    }
+
+                    break;
+                }
+            }
+
             $file .= ':'.$function->getStartLine();
 
             if ($methods !== '') {
diff --git a/src/_ide_business_day_instantiated.php b/src/_ide_business_day_instantiated.php
index d4d3674..6ae9880 100644
--- a/src/_ide_business_day_instantiated.php
+++ b/src/_ide_business_day_instantiated.php
@@ -15,27 +15,25 @@ class Carbon
          */
         public function addBusinessDays($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::addBusinessDay
          *
-         * Add a given number of business days to the current date.
-         *
-         * @param int $days
+         * Add one business day to the current date.
          *
          * @return \Carbon\Carbon|\Carbon\CarbonImmutable|\Carbon\CarbonInterface
          */
         public function addBusinessDay($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subBusinessDays
          *
-         * Add a given number of business days to the current date.
+         * Subtract a given number of business days to the current date.
          *
          * @param int $days
          *
@@ -43,13 +41,13 @@ public function addBusinessDay($days = 1, $self = null)
          */
         public function subBusinessDays($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subtractBusinessDays
          *
-         * Add a given number of business days to the current date.
+         * Subtract a given number of business days to the current date.
          *
          * @param int $days
          *
@@ -57,35 +55,31 @@ public function subBusinessDays($days = 1, $self = null)
          */
         public function subtractBusinessDays($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subBusinessDay
          *
-         * Add a given number of business days to the current date.
-         *
-         * @param int $days
+         * Subtract one business day to the current date.
          *
          * @return \Carbon\Carbon|\Carbon\CarbonImmutable|\Carbon\CarbonInterface
          */
         public function subBusinessDay($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subtractBusinessDay
          *
-         * Add a given number of business days to the current date.
-         *
-         * @param int $days
+         * Subtract one business day to the current date.
          *
          * @return \Carbon\Carbon|\Carbon\CarbonImmutable|\Carbon\CarbonInterface
          */
         public function subtractBusinessDay($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
@@ -99,7 +93,7 @@ public function subtractBusinessDay($days = 1, $self = null)
          */
         public function diffInBusinessDays($other = null, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:148
+            // Content, see src/Cmixin/BusinessDay.php:149
         }
 
         /**
@@ -111,7 +105,7 @@ public function diffInBusinessDays($other = null, $self = null)
          */
         public function getBusinessDaysInMonth($self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:176
+            // Content, see src/Cmixin/BusinessDay.php:177
         }
 
         /**
@@ -123,7 +117,7 @@ public function getBusinessDaysInMonth($self = null)
          */
         public function getMonthBusinessDays($self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:201
+            // Content, see src/Cmixin/BusinessDay.php:202
         }
 
         /**
@@ -165,7 +159,7 @@ public function currentOrNextBusinessDay($self = null)
         /**
          * @see \Cmixin\BusinessDay\BusinessCalendar::previousBusinessDay
          *
-         * Sets the date to the next business day (neither a weekend day nor a holiday).
+         * Sets the date to the previous business day (neither a weekend day nor a holiday).
          *
          * @return bool
          */
@@ -177,7 +171,7 @@ public function previousBusinessDay($self = null)
         /**
          * @see \Cmixin\BusinessDay\BusinessCalendar::currentOrPreviousBusinessDay
          *
-         * Sets the date to the current or next business day (neither a weekend day nor a holiday).
+         * Sets the date to the current or previous business day.
          *
          * @return bool
          */
@@ -246,10 +240,9 @@ public function getObserveHolidayMethod($holidayId = null, $observed = null, $se
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::observeHoliday
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param string $holidayId ID key of the holiday
          *
          * @return $this|null
          */
@@ -261,10 +254,9 @@ public function observeHoliday($holidayId = null, $observed = null, $self = null
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::unobserveHoliday
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as not observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param string $holidayId ID key of the holiday
          *
          * @return $this|null
          */
@@ -276,10 +268,9 @@ public function unobserveHoliday($holidayId = null, $observed = null, $self = nu
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::observeHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param array $holidayIds ID keys of the holidays
          *
          * @return $this|null
          */
@@ -291,10 +282,9 @@ public function observeHolidays($holidayId = null, $observed = null, $self = nul
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::unobserveHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as not observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param array $holidayIds ID keys of the holidays
          *
          * @return $this|null
          */
@@ -306,10 +296,7 @@ public function unobserveHolidays($holidayId = null, $observed = null, $self = n
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::observeAllHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
-         *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * Set all holidays as observed in the selected zone.
          *
          * @return $this|null
          */
@@ -321,10 +308,7 @@ public function observeAllHolidays($holidayId = null, $observed = null, $self =
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::unobserveAllHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
-         *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * Set all holidays as observed in the selected zone.
          *
          * @return $this|null
          */
@@ -687,27 +671,25 @@ class CarbonImmutable
          */
         public function addBusinessDays($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::addBusinessDay
          *
-         * Add a given number of business days to the current date.
-         *
-         * @param int $days
+         * Add one business day to the current date.
          *
          * @return \Carbon\Carbon|\Carbon\CarbonImmutable|\Carbon\CarbonInterface
          */
         public function addBusinessDay($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subBusinessDays
          *
-         * Add a given number of business days to the current date.
+         * Subtract a given number of business days to the current date.
          *
          * @param int $days
          *
@@ -715,13 +697,13 @@ public function addBusinessDay($days = 1, $self = null)
          */
         public function subBusinessDays($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subtractBusinessDays
          *
-         * Add a given number of business days to the current date.
+         * Subtract a given number of business days to the current date.
          *
          * @param int $days
          *
@@ -729,35 +711,31 @@ public function subBusinessDays($days = 1, $self = null)
          */
         public function subtractBusinessDays($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subBusinessDay
          *
-         * Add a given number of business days to the current date.
-         *
-         * @param int $days
+         * Subtract one business day to the current date.
          *
          * @return \Carbon\Carbon|\Carbon\CarbonImmutable|\Carbon\CarbonInterface
          */
         public function subBusinessDay($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subtractBusinessDay
          *
-         * Add a given number of business days to the current date.
-         *
-         * @param int $days
+         * Subtract one business day to the current date.
          *
          * @return \Carbon\Carbon|\Carbon\CarbonImmutable|\Carbon\CarbonInterface
          */
         public function subtractBusinessDay($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
@@ -771,7 +749,7 @@ public function subtractBusinessDay($days = 1, $self = null)
          */
         public function diffInBusinessDays($other = null, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:148
+            // Content, see src/Cmixin/BusinessDay.php:149
         }
 
         /**
@@ -783,7 +761,7 @@ public function diffInBusinessDays($other = null, $self = null)
          */
         public function getBusinessDaysInMonth($self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:176
+            // Content, see src/Cmixin/BusinessDay.php:177
         }
 
         /**
@@ -795,7 +773,7 @@ public function getBusinessDaysInMonth($self = null)
          */
         public function getMonthBusinessDays($self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:201
+            // Content, see src/Cmixin/BusinessDay.php:202
         }
 
         /**
@@ -837,7 +815,7 @@ public function currentOrNextBusinessDay($self = null)
         /**
          * @see \Cmixin\BusinessDay\BusinessCalendar::previousBusinessDay
          *
-         * Sets the date to the next business day (neither a weekend day nor a holiday).
+         * Sets the date to the previous business day (neither a weekend day nor a holiday).
          *
          * @return bool
          */
@@ -849,7 +827,7 @@ public function previousBusinessDay($self = null)
         /**
          * @see \Cmixin\BusinessDay\BusinessCalendar::currentOrPreviousBusinessDay
          *
-         * Sets the date to the current or next business day (neither a weekend day nor a holiday).
+         * Sets the date to the current or previous business day.
          *
          * @return bool
          */
@@ -918,10 +896,9 @@ public function getObserveHolidayMethod($holidayId = null, $observed = null, $se
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::observeHoliday
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param string $holidayId ID key of the holiday
          *
          * @return $this|null
          */
@@ -933,10 +910,9 @@ public function observeHoliday($holidayId = null, $observed = null, $self = null
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::unobserveHoliday
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as not observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param string $holidayId ID key of the holiday
          *
          * @return $this|null
          */
@@ -948,10 +924,9 @@ public function unobserveHoliday($holidayId = null, $observed = null, $self = nu
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::observeHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param array $holidayIds ID keys of the holidays
          *
          * @return $this|null
          */
@@ -963,10 +938,9 @@ public function observeHolidays($holidayId = null, $observed = null, $self = nul
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::unobserveHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as not observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param array $holidayIds ID keys of the holidays
          *
          * @return $this|null
          */
@@ -978,10 +952,7 @@ public function unobserveHolidays($holidayId = null, $observed = null, $self = n
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::observeAllHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
-         *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * Set all holidays as observed in the selected zone.
          *
          * @return $this|null
          */
@@ -993,10 +964,7 @@ public function observeAllHolidays($holidayId = null, $observed = null, $self =
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::unobserveAllHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
-         *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * Set all holidays as observed in the selected zone.
          *
          * @return $this|null
          */
@@ -1359,27 +1327,25 @@ class Carbon
          */
         public function addBusinessDays($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::addBusinessDay
          *
-         * Add a given number of business days to the current date.
-         *
-         * @param int $days
+         * Add one business day to the current date.
          *
          * @return \Carbon\Carbon|\Carbon\CarbonImmutable|\Carbon\CarbonInterface
          */
         public function addBusinessDay($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subBusinessDays
          *
-         * Add a given number of business days to the current date.
+         * Subtract a given number of business days to the current date.
          *
          * @param int $days
          *
@@ -1387,13 +1353,13 @@ public function addBusinessDay($days = 1, $self = null)
          */
         public function subBusinessDays($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subtractBusinessDays
          *
-         * Add a given number of business days to the current date.
+         * Subtract a given number of business days to the current date.
          *
          * @param int $days
          *
@@ -1401,35 +1367,31 @@ public function subBusinessDays($days = 1, $self = null)
          */
         public function subtractBusinessDays($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subBusinessDay
          *
-         * Add a given number of business days to the current date.
-         *
-         * @param int $days
+         * Subtract one business day to the current date.
          *
          * @return \Carbon\Carbon|\Carbon\CarbonImmutable|\Carbon\CarbonInterface
          */
         public function subBusinessDay($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subtractBusinessDay
          *
-         * Add a given number of business days to the current date.
-         *
-         * @param int $days
+         * Subtract one business day to the current date.
          *
          * @return \Carbon\Carbon|\Carbon\CarbonImmutable|\Carbon\CarbonInterface
          */
         public function subtractBusinessDay($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
@@ -1443,7 +1405,7 @@ public function subtractBusinessDay($days = 1, $self = null)
          */
         public function diffInBusinessDays($other = null, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:148
+            // Content, see src/Cmixin/BusinessDay.php:149
         }
 
         /**
@@ -1455,7 +1417,7 @@ public function diffInBusinessDays($other = null, $self = null)
          */
         public function getBusinessDaysInMonth($self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:176
+            // Content, see src/Cmixin/BusinessDay.php:177
         }
 
         /**
@@ -1467,7 +1429,7 @@ public function getBusinessDaysInMonth($self = null)
          */
         public function getMonthBusinessDays($self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:201
+            // Content, see src/Cmixin/BusinessDay.php:202
         }
 
         /**
@@ -1509,7 +1471,7 @@ public function currentOrNextBusinessDay($self = null)
         /**
          * @see \Cmixin\BusinessDay\BusinessCalendar::previousBusinessDay
          *
-         * Sets the date to the next business day (neither a weekend day nor a holiday).
+         * Sets the date to the previous business day (neither a weekend day nor a holiday).
          *
          * @return bool
          */
@@ -1521,7 +1483,7 @@ public function previousBusinessDay($self = null)
         /**
          * @see \Cmixin\BusinessDay\BusinessCalendar::currentOrPreviousBusinessDay
          *
-         * Sets the date to the current or next business day (neither a weekend day nor a holiday).
+         * Sets the date to the current or previous business day.
          *
          * @return bool
          */
@@ -1590,10 +1552,9 @@ public function getObserveHolidayMethod($holidayId = null, $observed = null, $se
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::observeHoliday
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param string $holidayId ID key of the holiday
          *
          * @return $this|null
          */
@@ -1605,10 +1566,9 @@ public function observeHoliday($holidayId = null, $observed = null, $self = null
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::unobserveHoliday
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as not observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param string $holidayId ID key of the holiday
          *
          * @return $this|null
          */
@@ -1620,10 +1580,9 @@ public function unobserveHoliday($holidayId = null, $observed = null, $self = nu
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::observeHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param array $holidayIds ID keys of the holidays
          *
          * @return $this|null
          */
@@ -1635,10 +1594,9 @@ public function observeHolidays($holidayId = null, $observed = null, $self = nul
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::unobserveHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as not observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param array $holidayIds ID keys of the holidays
          *
          * @return $this|null
          */
@@ -1650,10 +1608,7 @@ public function unobserveHolidays($holidayId = null, $observed = null, $self = n
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::observeAllHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
-         *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * Set all holidays as observed in the selected zone.
          *
          * @return $this|null
          */
@@ -1665,10 +1620,7 @@ public function observeAllHolidays($holidayId = null, $observed = null, $self =
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::unobserveAllHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
-         *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * Set all holidays as observed in the selected zone.
          *
          * @return $this|null
          */
diff --git a/src/_ide_business_day_static.php b/src/_ide_business_day_static.php
index dc0306e..0913f24 100644
--- a/src/_ide_business_day_static.php
+++ b/src/_ide_business_day_static.php
@@ -15,27 +15,25 @@ class Carbon
          */
         public static function addBusinessDays($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::addBusinessDay
          *
-         * Add a given number of business days to the current date.
-         *
-         * @param int $days
+         * Add one business day to the current date.
          *
          * @return \Carbon\Carbon|\Carbon\CarbonImmutable|\Carbon\CarbonInterface
          */
         public static function addBusinessDay($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subBusinessDays
          *
-         * Add a given number of business days to the current date.
+         * Subtract a given number of business days to the current date.
          *
          * @param int $days
          *
@@ -43,13 +41,13 @@ public static function addBusinessDay($days = 1, $self = null)
          */
         public static function subBusinessDays($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subtractBusinessDays
          *
-         * Add a given number of business days to the current date.
+         * Subtract a given number of business days to the current date.
          *
          * @param int $days
          *
@@ -57,35 +55,31 @@ public static function subBusinessDays($days = 1, $self = null)
          */
         public static function subtractBusinessDays($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subBusinessDay
          *
-         * Add a given number of business days to the current date.
-         *
-         * @param int $days
+         * Subtract one business day to the current date.
          *
          * @return \Carbon\Carbon|\Carbon\CarbonImmutable|\Carbon\CarbonInterface
          */
         public static function subBusinessDay($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subtractBusinessDay
          *
-         * Add a given number of business days to the current date.
-         *
-         * @param int $days
+         * Subtract one business day to the current date.
          *
          * @return \Carbon\Carbon|\Carbon\CarbonImmutable|\Carbon\CarbonInterface
          */
         public static function subtractBusinessDay($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
@@ -99,7 +93,7 @@ public static function subtractBusinessDay($days = 1, $self = null)
          */
         public static function diffInBusinessDays($other = null, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:148
+            // Content, see src/Cmixin/BusinessDay.php:149
         }
 
         /**
@@ -111,7 +105,7 @@ public static function diffInBusinessDays($other = null, $self = null)
          */
         public static function getBusinessDaysInMonth($self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:176
+            // Content, see src/Cmixin/BusinessDay.php:177
         }
 
         /**
@@ -123,7 +117,7 @@ public static function getBusinessDaysInMonth($self = null)
          */
         public static function getMonthBusinessDays($self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:201
+            // Content, see src/Cmixin/BusinessDay.php:202
         }
 
         /**
@@ -165,7 +159,7 @@ public static function currentOrNextBusinessDay($self = null)
         /**
          * @see \Cmixin\BusinessDay\BusinessCalendar::previousBusinessDay
          *
-         * Sets the date to the next business day (neither a weekend day nor a holiday).
+         * Sets the date to the previous business day (neither a weekend day nor a holiday).
          *
          * @return bool
          */
@@ -177,7 +171,7 @@ public static function previousBusinessDay($self = null)
         /**
          * @see \Cmixin\BusinessDay\BusinessCalendar::currentOrPreviousBusinessDay
          *
-         * Sets the date to the current or next business day (neither a weekend day nor a holiday).
+         * Sets the date to the current or previous business day.
          *
          * @return bool
          */
@@ -246,10 +240,9 @@ public static function getObserveHolidayMethod($holidayId = null, $observed = nu
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::observeHoliday
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param string $holidayId ID key of the holiday
          *
          * @return $this|null
          */
@@ -261,10 +254,9 @@ public static function observeHoliday($holidayId = null, $observed = null, $self
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::unobserveHoliday
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as not observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param string $holidayId ID key of the holiday
          *
          * @return $this|null
          */
@@ -276,10 +268,9 @@ public static function unobserveHoliday($holidayId = null, $observed = null, $se
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::observeHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param array $holidayIds ID keys of the holidays
          *
          * @return $this|null
          */
@@ -291,10 +282,9 @@ public static function observeHolidays($holidayId = null, $observed = null, $sel
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::unobserveHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as not observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param array $holidayIds ID keys of the holidays
          *
          * @return $this|null
          */
@@ -306,10 +296,7 @@ public static function unobserveHolidays($holidayId = null, $observed = null, $s
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::observeAllHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
-         *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * Set all holidays as observed in the selected zone.
          *
          * @return $this|null
          */
@@ -321,10 +308,7 @@ public static function observeAllHolidays($holidayId = null, $observed = null, $
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::unobserveAllHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
-         *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * Set all holidays as observed in the selected zone.
          *
          * @return $this|null
          */
@@ -687,27 +671,25 @@ class CarbonImmutable
          */
         public static function addBusinessDays($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::addBusinessDay
          *
-         * Add a given number of business days to the current date.
-         *
-         * @param int $days
+         * Add one business day to the current date.
          *
          * @return \Carbon\Carbon|\Carbon\CarbonImmutable|\Carbon\CarbonInterface
          */
         public static function addBusinessDay($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subBusinessDays
          *
-         * Add a given number of business days to the current date.
+         * Subtract a given number of business days to the current date.
          *
          * @param int $days
          *
@@ -715,13 +697,13 @@ public static function addBusinessDay($days = 1, $self = null)
          */
         public static function subBusinessDays($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subtractBusinessDays
          *
-         * Add a given number of business days to the current date.
+         * Subtract a given number of business days to the current date.
          *
          * @param int $days
          *
@@ -729,35 +711,31 @@ public static function subBusinessDays($days = 1, $self = null)
          */
         public static function subtractBusinessDays($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subBusinessDay
          *
-         * Add a given number of business days to the current date.
-         *
-         * @param int $days
+         * Subtract one business day to the current date.
          *
          * @return \Carbon\Carbon|\Carbon\CarbonImmutable|\Carbon\CarbonInterface
          */
         public static function subBusinessDay($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subtractBusinessDay
          *
-         * Add a given number of business days to the current date.
-         *
-         * @param int $days
+         * Subtract one business day to the current date.
          *
          * @return \Carbon\Carbon|\Carbon\CarbonImmutable|\Carbon\CarbonInterface
          */
         public static function subtractBusinessDay($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
@@ -771,7 +749,7 @@ public static function subtractBusinessDay($days = 1, $self = null)
          */
         public static function diffInBusinessDays($other = null, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:148
+            // Content, see src/Cmixin/BusinessDay.php:149
         }
 
         /**
@@ -783,7 +761,7 @@ public static function diffInBusinessDays($other = null, $self = null)
          */
         public static function getBusinessDaysInMonth($self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:176
+            // Content, see src/Cmixin/BusinessDay.php:177
         }
 
         /**
@@ -795,7 +773,7 @@ public static function getBusinessDaysInMonth($self = null)
          */
         public static function getMonthBusinessDays($self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:201
+            // Content, see src/Cmixin/BusinessDay.php:202
         }
 
         /**
@@ -837,7 +815,7 @@ public static function currentOrNextBusinessDay($self = null)
         /**
          * @see \Cmixin\BusinessDay\BusinessCalendar::previousBusinessDay
          *
-         * Sets the date to the next business day (neither a weekend day nor a holiday).
+         * Sets the date to the previous business day (neither a weekend day nor a holiday).
          *
          * @return bool
          */
@@ -849,7 +827,7 @@ public static function previousBusinessDay($self = null)
         /**
          * @see \Cmixin\BusinessDay\BusinessCalendar::currentOrPreviousBusinessDay
          *
-         * Sets the date to the current or next business day (neither a weekend day nor a holiday).
+         * Sets the date to the current or previous business day.
          *
          * @return bool
          */
@@ -918,10 +896,9 @@ public static function getObserveHolidayMethod($holidayId = null, $observed = nu
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::observeHoliday
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param string $holidayId ID key of the holiday
          *
          * @return $this|null
          */
@@ -933,10 +910,9 @@ public static function observeHoliday($holidayId = null, $observed = null, $self
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::unobserveHoliday
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as not observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param string $holidayId ID key of the holiday
          *
          * @return $this|null
          */
@@ -948,10 +924,9 @@ public static function unobserveHoliday($holidayId = null, $observed = null, $se
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::observeHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param array $holidayIds ID keys of the holidays
          *
          * @return $this|null
          */
@@ -963,10 +938,9 @@ public static function observeHolidays($holidayId = null, $observed = null, $sel
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::unobserveHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as not observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param array $holidayIds ID keys of the holidays
          *
          * @return $this|null
          */
@@ -978,10 +952,7 @@ public static function unobserveHolidays($holidayId = null, $observed = null, $s
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::observeAllHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
-         *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * Set all holidays as observed in the selected zone.
          *
          * @return $this|null
          */
@@ -993,10 +964,7 @@ public static function observeAllHolidays($holidayId = null, $observed = null, $
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::unobserveAllHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
-         *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * Set all holidays as observed in the selected zone.
          *
          * @return $this|null
          */
@@ -1359,27 +1327,25 @@ class Carbon
          */
         public static function addBusinessDays($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::addBusinessDay
          *
-         * Add a given number of business days to the current date.
-         *
-         * @param int $days
+         * Add one business day to the current date.
          *
          * @return \Carbon\Carbon|\Carbon\CarbonImmutable|\Carbon\CarbonInterface
          */
         public static function addBusinessDay($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subBusinessDays
          *
-         * Add a given number of business days to the current date.
+         * Subtract a given number of business days to the current date.
          *
          * @param int $days
          *
@@ -1387,13 +1353,13 @@ public static function addBusinessDay($days = 1, $self = null)
          */
         public static function subBusinessDays($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subtractBusinessDays
          *
-         * Add a given number of business days to the current date.
+         * Subtract a given number of business days to the current date.
          *
          * @param int $days
          *
@@ -1401,35 +1367,31 @@ public static function subBusinessDays($days = 1, $self = null)
          */
         public static function subtractBusinessDays($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subBusinessDay
          *
-         * Add a given number of business days to the current date.
-         *
-         * @param int $days
+         * Subtract one business day to the current date.
          *
          * @return \Carbon\Carbon|\Carbon\CarbonImmutable|\Carbon\CarbonInterface
          */
         public static function subBusinessDay($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
          * @see \Cmixin\BusinessDay::subtractBusinessDay
          *
-         * Add a given number of business days to the current date.
-         *
-         * @param int $days
+         * Subtract one business day to the current date.
          *
          * @return \Carbon\Carbon|\Carbon\CarbonImmutable|\Carbon\CarbonInterface
          */
         public static function subtractBusinessDay($days = 1, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:27
+            // Content, see src/Cmixin/BusinessDay.php:28
         }
 
         /**
@@ -1443,7 +1405,7 @@ public static function subtractBusinessDay($days = 1, $self = null)
          */
         public static function diffInBusinessDays($other = null, $self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:148
+            // Content, see src/Cmixin/BusinessDay.php:149
         }
 
         /**
@@ -1455,7 +1417,7 @@ public static function diffInBusinessDays($other = null, $self = null)
          */
         public static function getBusinessDaysInMonth($self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:176
+            // Content, see src/Cmixin/BusinessDay.php:177
         }
 
         /**
@@ -1467,7 +1429,7 @@ public static function getBusinessDaysInMonth($self = null)
          */
         public static function getMonthBusinessDays($self = null)
         {
-            // Content, see src/Cmixin/BusinessDay.php:201
+            // Content, see src/Cmixin/BusinessDay.php:202
         }
 
         /**
@@ -1509,7 +1471,7 @@ public static function currentOrNextBusinessDay($self = null)
         /**
          * @see \Cmixin\BusinessDay\BusinessCalendar::previousBusinessDay
          *
-         * Sets the date to the next business day (neither a weekend day nor a holiday).
+         * Sets the date to the previous business day (neither a weekend day nor a holiday).
          *
          * @return bool
          */
@@ -1521,7 +1483,7 @@ public static function previousBusinessDay($self = null)
         /**
          * @see \Cmixin\BusinessDay\BusinessCalendar::currentOrPreviousBusinessDay
          *
-         * Sets the date to the current or next business day (neither a weekend day nor a holiday).
+         * Sets the date to the current or previous business day.
          *
          * @return bool
          */
@@ -1590,10 +1552,9 @@ public static function getObserveHolidayMethod($holidayId = null, $observed = nu
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::observeHoliday
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param string $holidayId ID key of the holiday
          *
          * @return $this|null
          */
@@ -1605,10 +1566,9 @@ public static function observeHoliday($holidayId = null, $observed = null, $self
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::unobserveHoliday
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as not observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param string $holidayId ID key of the holiday
          *
          * @return $this|null
          */
@@ -1620,10 +1580,9 @@ public static function unobserveHoliday($holidayId = null, $observed = null, $se
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::observeHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param array $holidayIds ID keys of the holidays
          *
          * @return $this|null
          */
@@ -1635,10 +1594,9 @@ public static function observeHolidays($holidayId = null, $observed = null, $sel
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::unobserveHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
+         * Set a holiday as not observed in the selected zone.
          *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * @param array $holidayIds ID keys of the holidays
          *
          * @return $this|null
          */
@@ -1650,10 +1608,7 @@ public static function unobserveHolidays($holidayId = null, $observed = null, $s
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::observeAllHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
-         *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * Set all holidays as observed in the selected zone.
          *
          * @return $this|null
          */
@@ -1665,10 +1620,7 @@ public static function observeAllHolidays($holidayId = null, $observed = null, $
         /**
          * @see \Cmixin\BusinessDay\HolidayObserver::unobserveAllHolidays
          *
-         * Set a holiday as observed/unobserved in the selected zone (can take array of holidays).
-         *
-         * @param string|array $holidayId ID key of the holiday
-         * @param bool         $observed  observed state
+         * Set all holidays as observed in the selected zone.
          *
          * @return $this|null
          */