/**
* Returns whether the builder contains an optional argument.
*
* @param bool $includeBase Whether to include arguments in the base format
* in the search.
*
* @return bool Returns `true` if the builder contains an optional argument
* and `false` otherwise.
*/
public function hasOptionalArgument($includeBase = true)
{
Assert::boolean($includeBase, 'The parameter $includeBase must be a boolean. Got: %s');
if ($this->hasOptionalArg) {
return true;
}
if ($includeBase && $this->baseFormat) {
return $this->baseFormat->hasOptionalArgument();
}
return false;
}