lib/process_babel_plugins.js
function isPluginFunction(plugin) {
	return _.isFunction(plugin) || _.isFunction(_.head(plugin));
}
function isPluginFunction(plugin) {
	return _.isFunction(plugin) || _.isFunction(_.head(plugin));
}
function isPluginFunction ( plugin ) { return _ . isFunction ( plugin ) || _ . isFunction ( _ . head ( plugin ) ) ; }
Whether the plugin function was provided instead of the plugin name
@param {BabelPlugin} plugin
@return {boolean} `true` if a plugin function was provided, `false` otherwise
Whether the plugin function was provided instead of the plugin name