original_string: protected function providerExists($provider)
      {
          return (
              array_key_exists($provider, $this->serviceMap) ||
              array_key_exists($provider, $this->config)
          );
      }
code: protected function providerExists($provider)
      {
          return (
              array_key_exists($provider, $this->serviceMap) ||
              array_key_exists($provider, $this->config)
          );
      }
code_tokens: protected function providerExists ( $ provider ) { return ( array_key_exists ( $ provider , $ this -> serviceMap ) || array_key_exists ( $ provider , $ this -> config ) ) ; }
docstring: Determine whether the provider exists in the service map as well as the social login config
  
  @param  string $provider
  @return bool
docstring_tokens: Determine whether the provider exists in the service map as well as the social login config