def __extract_docstring(self, node: cst.FunctionDef) -> str:
"""
Extracts & post-processes the docstring from the provided function node.
If a docstring is not present, an empty string is returned.
:node: Function node
:return: Docstring as string
"""
# Get docstring from Function node
docstring = node.get_docstring()
# Return empty string if docstring undefined
return docstring if docstring is not None else ""
def visit_FunctionDef(self, node: cst.FunctionDef) -> Optional[bool]:
self.stack.append(node.name.value)
docstring = node.get_docstring(clean=False)
self.annotations[tuple(self.stack)] = (node.params, node.returns, None,
docstring)
return False # pyi files don't support inner functions, return False to stop the traversal.