parameters: (self)
return_statement: return self.checkpoint.stale if self.checkpoint else False
docstring: Is this state so old that it might be invalid?
docstring_summary: Is this state so old that it might be invalid?
docstring_tokens: Is this state so old that it might be invalid?
function: def stale(self) -> bool:
          """Is this state so old that it might be invalid?"""
          return self.checkpoint.stale if self.checkpoint else False
function_tokens: def stale ( self ) -> bool : return self . checkpoint . stale if self . checkpoint else False