Update docstring for Hfss.create_boundary (#4435)

Co-authored-by: Samuel Lopez <[email protected]>

Author: Devin-Crawford

pyaedt/hfss.py

@@ -3039,16 +3039,28 @@ def create_impedance_between_objects(
     def create_boundary(
         self, boundary_type=BoundaryType.PerfectE, sheet_name=None, boundary_name="", is_infinite_gnd=False
     ):
-        """Create a boundary given specific inputs.
+        """Assign a boundary condition to a sheet or surface. This method is generally
+           used by other methods in the ``Hfss`` class such as the :meth:``Hfss.assign_febi``
+           or :meth:``Hfss.assign_radiation_boundary_to_faces`` method.
 
         Parameters
         ----------
-        boundary_type : str, optional
-            Boundary type object. Options are ``"Perfect E"``, ``"Perfect H"``, ``"Aperture"``, and
-            ``"Radiation"``. The default is ``PerfectE``.
-        sheet_name : in, str, or list, optional
-            Name of the sheet. It can be an integer (face ID), a string (sheet), or a list of integers
-            and strings. The default is ``None``.
+        boundary_type : int, optional
+            Type of boundary condition to assign to a sheet or surface. The
+            default is ``Hfss.BoundaryType.PerfectE``. Options are the properties of the
+            :class:``Hfss.BoundaryType`` class. For example:
+
+                - ``Hfss.BoundaryType.PerfectE``
+                - ``Hfss.BoundaryType.PerfectH``
+                - ``Hfss.BoundaryType.Radiation``
+                - ``Hfss.BoundaryType.Impedance``
+                - ``Hfss.BoundaryType.LumpedRLC``
+                - ``Hfss.BoundaryType.FEBI``
+
+        sheet_name : int, str, or list, optional
+            Name of the sheet or face to assign the boundary condition to. The
+            default is ``None``. You can provide an integer (face ID), a string (sheet),
+            or a list of integers and strings.
         boundary_name : str, optional
             Name of the boundary. The default is ``""``.
         is_infinite_gnd : bool, optional