parameters: (self)
docstring: Tell whether or not the file is locked.
docstring_summary: Tell whether or not the file is locked.
docstring_tokens: Tell whether or not the file is locked .
function: def is_locked(self):
          """
          Tell whether or not the file is locked.
          """
          raise NotImplemented("implement in subclass")
function_tokens: def is_locked ( self ) : raise NotImplemented ( "implement in subclass" )