src/Auth/Authentication.php
protected function isTokenLoaded( $service ) {
        return ( array_key_exists( $service, $this->tokens ) && ( $this->tokens[$service] instanceof SecurityToken ) );
    }
protected function isTokenLoaded( $service ) {
        return ( array_key_exists( $service, $this->tokens ) && ( $this->tokens[$service] instanceof SecurityToken ) );
    }
protected function isTokenLoaded ( $ service ) { return ( array_key_exists ( $ service , $ this -> tokens ) && ( $ this -> tokens [ $ service ] instanceof SecurityToken ) ) ; }
Checks whether security token for given service is loaded into memory.

@param string $service

@return bool
Checks whether security token for given service is loaded into memory .