src/Application/Process/ProcessBuilder.php
public function arg(string $arg): ProcessBuilder
    {
        if ($arg === '') {
            return $this;
        }

        $this->arguments[] = $arg;

        return $this;
    }
public function arg(string $arg): ProcessBuilder
    {
        if ($arg === '') {
            return $this;
        }

        $this->arguments[] = $arg;

        return $this;
    }
public function arg ( string $ arg ) : ProcessBuilder { if ( $ arg === '' ) { return $ this ; } $ this -> arguments [ ] = $ arg ; return $ this ; }
Adds an argument

@param string $arg The command argument

@return ProcessBuilder
Adds an argument