original_string: protected function get_contrib_list() {
          return array_map(function($plugins) {
              return array_filter($plugins, function($plugindata) {
                  return !$plugindata->is_standard();
              });
          }, \core_plugin_manager::instance()->get_plugins());
      }
code: protected function get_contrib_list() {
          return array_map(function($plugins) {
              return array_filter($plugins, function($plugindata) {
                  return !$plugindata->is_standard();
              });
          }, \core_plugin_manager::instance()->get_plugins());
      }
code_tokens: protected function get_contrib_list ( ) { return array_map ( function ( $ plugins ) { return array_filter ( $ plugins , function ( $ plugindata ) { return ! $ plugindata -> is_standard ( ) ; } ) ; } , \ core_plugin_manager :: instance ( ) -> get_plugins ( ) ) ; }
docstring: Returns a list of contributed plugins installed on the system.
  
  @return array A list of contributed plugins installed.
docstring_tokens: Returns a list of contributed plugins installed on the system .