Add switch parameter to docstring

bliss/common/axis.py

@@ -1475,6 +1475,7 @@ class Axis(AliasMixin, LogMixin):
 
         Args:
             wait (bool): wait for search to finish [default: True]
+            switch: 1, -1, 0 defines the motion direction of the home search ( 0: automatic choice of direction)
         """
         with self._lock:
             if self.is_moving:

bliss/controllers/motor.py

@@ -387,6 +387,12 @@ class Controller(LogMixin):
         raise NotImplementedError
 
     def home_search(self, axis, switch):
+                """
+        Should launch the search procedure of the home switch
+
+        Args:
+            switch: 1, -1, 0 defines the motion direction of the home search ( 0: automatic choice of direction)
+        """
         raise NotImplementedError
 
     def home_state(self, axis):