#NEWLINE# def credential_lists( self , trunk_sid ) : #NEWLINE# #INDENT# '\n        Return a :class:`CredentialList` instance\n        ' #NEWLINE# credential_lists_uri = '{0}/Trunks/{1}' . format ( self . trunk_base_uri , trunk_sid ) #NEWLINE# return CredentialLists ( self , self . auth , self . timeout )