private function setOutputPrefix($prefix)
    {
        if (!($this->output->getFormatter() instanceof PrefixFormatter)) {
            return;
        }

        $this->output->getFormatter()->prefix = $prefix;
    }
private function setOutputPrefix($prefix)
    {
        if (!($this->output->getFormatter() instanceof PrefixFormatter)) {
            return;
        }

        $this->output->getFormatter()->prefix = $prefix;
    }
private function setOutputPrefix ( $ prefix ) { if ( ! ( $ this -> output -> getFormatter ( ) instanceof PrefixFormatter ) ) { return ; } $ this -> output -> getFormatter ( ) -> prefix = $ prefix ; }
Helper to set prefix if the output if PrefixFormatter

@param string $prefix
@return void
Helper to set prefix if the output if PrefixFormatter