original_string: public function providers()
      {
          return collect($this->getManifest())->flatMap(function ($configuration) {
              return (array) ($configuration['providers'] ? $configuration['providers'] : []);
          })->filter()->all();
      }
code: public function providers()
      {
          return collect($this->getManifest())->flatMap(function ($configuration) {
              return (array) ($configuration['providers'] ? $configuration['providers'] : []);
          })->filter()->all();
      }
code_tokens: public function providers ( ) { return collect ( $ this -> getManifest ( ) ) -> flatMap ( function ( $ configuration ) { return ( array ) ( $ configuration [ 'providers' ] ? $ configuration [ 'providers' ] : [ ] ) ; } ) -> filter ( ) -> all ( ) ; }
docstring: Get all of the service provider class names for all packages.
  
  @return array
docstring_tokens: Get all of the service provider class names for all packages .