public function isCallable($value, $message = '')
    {
        $this->assertion->setActual($value);

        return $this->assertion->to->satisfy('is_callable', $message);
    }
public function isCallable($value, $message = '')
    {
        $this->assertion->setActual($value);

        return $this->assertion->to->satisfy('is_callable', $message);
    }
public function isCallable ( $ value , $ message = '' ) { $ this -> assertion -> setActual ( $ value ) ; return $ this -> assertion -> to -> satisfy ( 'is_callable' , $ message ) ; }
Performs a predicate assertion to check if actual
value is callable.

@param mixed  $value
@param string $message
Performs a predicate assertion to check if actual value is callable .