diff --git a/src/pyciemss/integration_utils/custom_decorators.py b/src/pyciemss/integration_utils/custom_decorators.py
index 55b760b96..c8f3f6532 100644
--- a/src/pyciemss/integration_utils/custom_decorators.py
+++ b/src/pyciemss/integration_utils/custom_decorators.py
@@ -18,7 +18,7 @@ def wrapped(*args, **kwargs):
                 ###############################
 
                 There was an exception in pyciemss
-                
+
                 Error occured in function: %s
 
                 Function docs : %s
diff --git a/src/pyciemss/interfaces.py b/src/pyciemss/interfaces.py
index 44929656a..331f3d976 100644
--- a/src/pyciemss/interfaces.py
+++ b/src/pyciemss/interfaces.py
@@ -112,7 +112,8 @@ def calibrate(
     model: DynamicalSystem[T], data: Data[T], *args, **kwargs
 ) -> InferredParameters[T]:
     """
-    Infer parameters for a DynamicalSystem model conditional on data. This is typically done using a variational approximation.
+    Infer parameters for a DynamicalSystem model conditional on data.
+    This is typically done using a variational approximation.
     """
     raise NotImplementedError
 
@@ -125,7 +126,8 @@ def simulate(
     **kwargs
 ) -> Simulation[T]:
     """
-    Simulate trajectories from a given `model`, conditional on specified `inferred_parameters` distribution. If `inferred_parameters` is not given, this will sample from the prior distribution.
+    Simulate trajectories from a given `model`, conditional on specified `inferred_parameters` distribution.
+    If `inferred_parameters` is not given, this will sample from the prior distribution.
     """
     raise NotImplementedError