wp_xmlrpc_server::__call( string $name, array $arguments )

Source

File: wp-includes/class-wp-xmlrpc-server.php

public function __call( $name, $arguments ) {
		if ( '_multisite_getUsersBlogs' === $name ) {
			return $this->_multisite_getUsersBlogs( ...$arguments );
		}
		return false;
	}