@property<EOL><INDENT>def function_versions(self):<DEDENT>
if self._function_versions is None:<EOL><INDENT>self._function_versions = FunctionVersionList(<EOL>self._version,<EOL>service_sid=self._solution['<STR_LIT>'],<EOL>function_sid=self._solution['<STR_LIT>'],<EOL>)<EOL><DEDENT>return self._function_versions<EOL>
Access the function_versions

:returns: twilio.rest.serverless.v1.service.function.function_version.FunctionVersionList
:rtype: twilio.rest.serverless.v1.service.function.function_version.FunctionVersionList