class_docstr: Should be defined, otherwise the API returns empty types.
code: def py__doc__(self, include_call_signature=False):
      try:
          self.tree_node.get_doc_node
      except AttributeError:
          return ""
      else:
          if include_call_signature:
              return get_doc_with_call_signature(self.tree_node)
          else:
              return clean_scope_docstring(self.tree_node)
      return None
  
imports: from parso.python.tree import ExprStmt, CompFor
  from jedi import debug
  from jedi._compatibility import Python3Method, zip_longest, unicode
  from jedi.parser_utils import clean_scope_docstring, get_doc_with_call_signature
  from jedi.common import BaseContextSet, BaseContext
  from jedi.evaluate.helpers import EvaluatorIndexError, EvaluatorTypeError, EvaluatorKeyError
label_desc: Use image node_id 11 for calling the Context obj's underlying member method code with example usage: obj.py__doc__(include_call_signature) and returns: None, str, get_doc_with_call_signature, clean_scope_docstring