PY-9342 Distinguish between function and method types

python/helpers/pycharm_generator_utils/module_redeclarator.py

@@ -1009,6 +1009,8 @@ class ModuleRedeclarator(object):
                 self.classes_buf.out(0, txt)
                 txt = create_function()
                 self.classes_buf.out(0, txt)
+                txt = create_method()
+                self.classes_buf.out(0, txt)
 
                 # Fake <type 'namedtuple'>
                 if version[0] >= 3 or (version[0] == 2 and version[1] >= 6):

python/helpers/pycharm_generator_utils/util_methods.py

@@ -115,6 +115,25 @@ class __function(object):
 """
     return txt
 
+def create_method():
+    txt = """
+class __method(object):
+    '''A mock class representing method type.'''
+
+    def __init__(self):
+"""
+    if version[0] == 2:
+        txt += """
+        self.im_class = None
+        self.im_self = None
+        self.im_func = None
+"""
+    if version[0] >= 3 or (version[0] == 2 and version[1] >= 6):
+        txt += """
+        self.__func__ = None
+        self.__self__ = None
+"""
+    return txt
 
 def _searchbases(cls, accum):
     # logic copied from inspect.py