def is_argument(self, name):
if name == self.vararg:<EOL><INDENT>return True<EOL><DEDENT>if name == self.kwarg:<EOL><INDENT>return True<EOL><DEDENT>return (<EOL>self.find_argname(name, True)[<NUM_LIT:1>] is not None<EOL>or self.kwonlyargs<EOL>and _find_arg(name, self.kwonlyargs, True)[<NUM_LIT:1>] is not None<EOL>)<EOL>
Check if the given name is defined in the arguments.

        :param name: The name to check for.
        :type name: str

        :returns: True if the given name is defined in the arguments,
            False otherwise.
        :rtype: bool