WordPress at a glance
function is not described

IXR_ClientMulticall::query() public WP 1.5.0

{} It's a method of the class: IXR_ClientMulticall{}

No Hooks.

Return

true/false.

Usage

$IXR_ClientMulticall = new IXR_ClientMulticall();
$IXR_ClientMulticall->query( ...$args );

Changelog

Since 1.5.0 Introduced.
Since 5.5.0 Formalized the existing ...$args parameter by adding it to the function signature.

Code of IXR_ClientMulticall::query() WP 5.5.2

<?php
function query( ...$args )
{
    // Prepare multicall, then call the parent::query() method
    return parent::query('system.multicall', $this->calls);
}