wp-includes/class-wp-xmlrpc-server.php:799Checks if the method received at least the minimum number of arguments.
$argsarray$countintbool protected function minimum_args( $args, $count ) { if ( ! is_array( $args ) || count( $args ) < $count ) { $this->error = new IXR_Error( 400, __( 'Insufficient arguments passed to this XML-RPC method.' ) ); return false; } return true; }Introduced in 3.4.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-xmlrpc-server.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.