@utilities.arguments_not_none<EOL><INDENT>def set_identifier_prefix(self, prefix):<DEDENT>
raise errors.Unimplemented()<EOL>
Seta the identifier prefix.

        An identifier will be generated with this prefix.

        arg:    prefix (string): the prefix
        raise:  InvalidArgument - ``prefix`` is invalid
        raise:  NoAccess - ``prefix`` cannot be modified
        raise:  NullArgument - ``prefix`` is ``null``
        *compliance: mandatory -- This method must be implemented.*