Add properties to access the sketch parameters of a Database

Author: althonos

src/pyskani/_skani.pyi

@@ -63,6 +63,10 @@ class Database:
     ) -> Optional[bool]: ...
     @property
     def path(self) -> Optional[Path]: ...
+    @property
+    def compression(self) -> int: ...
+    @property
+    def marker_compression(self) -> int: ...
     def sketch(self, name: str, *contigs: _Sequence, seed: bool = True) -> None: ...
     def query(
         self,

src/pyskani/_skani/lib.rs

@@ -451,6 +451,18 @@ impl Database {
         }
     }
 
+    /// `int`: The compression factor for sketches.
+    #[getter]
+    pub fn get_compression<'py>(slf: PyRef<'py, Self>, _py: Python) -> usize {
+        slf.params.c
+    }
+
+    /// `int`: The compression factor for marker k-mers.
+    #[getter]
+    pub fn get_marker_compression<'py>(slf: PyRef<'py, Self>, _py: Python) -> usize {
+        slf.params.marker_c
+    }
+
     /// Add a reference genome to the database.
     ///
     /// Arguments: