public function setHelp($help)
    {
        if (null !== $help) {
            Assert::string($help, 'The help text must be a string. Got: %s');
            Assert::notEmpty($help, 'The help text must not be empty.');
        }

        $this->help = $help;

        return $this;
    }
public function setHelp($help)
    {
        if (null !== $help) {
            Assert::string($help, 'The help text must be a string. Got: %s');
            Assert::notEmpty($help, 'The help text must not be empty.');
        }

        $this->help = $help;

        return $this;
    }
public function setHelp ( $ help ) { if ( null !== $ help ) { Assert :: string ( $ help , 'The help text must be a string. Got: %s' ) ; Assert :: notEmpty ( $ help , 'The help text must not be empty.' ) ; } $ this -> help = $ help ; return $ this ; }
Sets the help text of the application.

@param string $help The help text.

@return static The current instance.
Sets the help text of the application .