func (c *Client) RawInformationQuery(from, to, id, iqType, requestNamespace, body string) (string, error) {
	const xmlIQ = "<iq from='%s' to='%s' id='%s' type='%s'><query xmlns='%s'>%s</query></iq>"
	_, err := fmt.Fprintf(c.conn, xmlIQ, xmlEscape(from), xmlEscape(to), id, iqType, requestNamespace, body)
	return id, err
}
func (c *Client) RawInformationQuery(from, to, id, iqType, requestNamespace, body string) (string, error) {
	const xmlIQ = "<iq from='%s' to='%s' id='%s' type='%s'><query xmlns='%s'>%s</query></iq>"
	_, err := fmt.Fprintf(c.conn, xmlIQ, xmlEscape(from), xmlEscape(to), id, iqType, requestNamespace, body)
	return id, err
}
// RawInformationQuery sends an information query request to the server.