src/View/Helper/Traits/IncludeTrait.php
protected function _isOnceIncluded($path, $type, array $options = [])
    {
        return $options['once'] && isset($this->_includedAssets[$type][$path]);
    }
protected function _isOnceIncluded($path, $type, array $options = [])
    {
        return $options['once'] && isset($this->_includedAssets[$type][$path]);
    }
protected function _isOnceIncluded ( $ path , $ type , array $ options = [ ] ) { return $ options [ 'once' ] && isset ( $ this -> _includedAssets [ $ type ] [ $ path ] ) ; }
Check asset on once include.

@param string $path
@param string $type
@param array $options
@return bool
Check asset on once include .