public function offsetExists($key) {
    $resolved_key = $this->arguments_spec->normalizeOptionName($key);
    if ($resolved_key === null) {
      return isset($this->merged_arg_values[$key]);
    }

    return isset($this->merged_arg_values[$resolved_key]);
  }
public function offsetExists($key) {
    $resolved_key = $this->arguments_spec->normalizeOptionName($key);
    if ($resolved_key === null) {
      return isset($this->merged_arg_values[$key]);
    }

    return isset($this->merged_arg_values[$resolved_key]);
  }
public function offsetExists ( $ key ) { $ resolved_key = $ this -> arguments_spec -> normalizeOptionName ( $ key ) ; if ( $ resolved_key === null ) { return isset ( $ this -> merged_arg_values [ $ key ] ) ; } return isset ( $ this -> merged_arg_values [ $ resolved_key ] ) ; }
returns true if the argument or option value exists

@param string $key argument name or long option name

@return bool true if the argument or option value exists
returns true if the argument or option value exists