code: def parse_docstring(self, func_or_method: typing.Callable) -> dict:
          
          docstring = func_or_method.__doc__
          if not docstring:
              return {}
  
          # We support having regular docstrings before the schema
          # definition. Here we return just the schema part from
          # the docstring.
          docstring = docstring.split("---")[-1]
  
          parsed = yaml.safe_load(docstring)
  
          if not isinstance(parsed, dict):
              # A regular docstring (not yaml formatted) can return
              # a simple string here, which wouldn't follow the schema.
              return {}
  
          return parsed
docs: Given a function, parse the docstring as YAML and return a dictionary of info.