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function translations_api( $type, $args = null ) {
	if ( ! in_array( $type, array( 'plugins', 'themes', 'core' ), true ) ) {
		return new WP_Error( 'invalid_type', __( 'Invalid translation type.' ) );
	}

	/**
	 * Allows a plugin to override the WordPress.org Translation Installation API entirely.
	 *
	 * @since 4.0.0
	 *
	 * @param false|array $result The result array. Default false.
	 * @param string      $type   The type of translations being requested.
	 * @param object      $args   Translation API arguments.
	 */
	$res = apply_filters( 'translations_api', false, $type, $args );

	if ( false === $res ) {
		$url      = 'http://api.wordpress.org/translations/' . $type . '/1.0/';
		$http_url = $url;
		$ssl      = wp_http_supports( array( 'ssl' ) );
		if ( $ssl ) {
			$url = set_url_scheme( $url, 'https' );
		}

		$options = array(
			'timeout' => 3,
			'body'    => array(
				'wp_version' => wp_get_wp_version(),
				'locale'     => get_locale(),
				'version'    => $args['version'], // Version of plugin, theme or core.
			),
		);

		if ( 'core' !== $type ) {
			$options['body']['slug'] = $args['slug']; // Plugin or theme slug.
		}

		$request = wp_remote_post( $url, $options );

		if ( $ssl && is_wp_error( $request ) ) {
			wp_trigger_error(
				__FUNCTION__,
				sprintf(
					/* translators: %s: Support forums URL. */
					__( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server&#8217;s configuration. If you continue to have problems, please try the <a href="%s">support forums</a>.' ),
					__( 'https://wordpress.org/support/forums/' )
				) . ' ' . __( '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)' ),
				headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE
			);

			$request = wp_remote_post( $http_url, $options );
		}

		if ( is_wp_error( $request ) ) {
			$res = new WP_Error(
				'translations_api_failed',
				sprintf(
					/* translators: %s: Support forums URL. */
					__( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server&#8217;s configuration. If you continue to have problems, please try the <a href="%s">support forums</a>.' ),
					__( 'https://wordpress.org/support/forums/' )
				),
				$request->get_error_message()
			);
		} else {
			$res = json_decode( wp_remote_retrieve_body( $request ), true );
			if ( ! is_object( $res ) && ! is_array( $res ) ) {
				$res = new WP_Error(
					'translations_api_failed',
					sprintf(
						/* translators: %s: Support forums URL. */
						__( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server&#8217;s configuration. If you continue to have problems, please try the <a href="%s">support forums</a>.' ),
						__( 'https://wordpress.org/support/forums/' )
					),
					wp_remote_retrieve_body( $request )
				);
			}
		}
	}

	/**
	 * Filters the Translation Installation API response results.
	 *
	 * @since 4.0.0
	 *
	 * @param array|WP_Error $res  {
	 *     On success an associative array of translations, WP_Error on failure.
	 *
	 *     @type array $translations {
	 *         List of translations, each an array of data.
	 *
	 *         @type array ...$0 {
	 *             @type string   $language     Language code.
	 *             @type string   $version      WordPress version.
	 *             @type string   $updated      Date the translation was last updated, in MySQL datetime format.
	 *             @type string   $english_name English name of the language.
	 *             @type string   $native_name  Native name of the language.
	 *             @type string   $package      URL to download the translation package.
	 *             @type string[] $iso          Array of ISO language codes.
	 *             @type array    $strings      Array of translated strings used in the installation process.
	 *         }
	 *     }
	 * }
	 * @param string         $type The type of translations being requested.
	 * @param object         $args Translation API arguments.
	 */
	return apply_filters( 'translations_api_result', $res, $type, $args );
}