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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def settings(self):
 """Return batch job settings."""

        _settings = {
            'action': self._action,
            # not supported in v2 batch
            # 'attributeWriteType': self._attribute_write_type,
            'attributeWriteType': 'Replace',
            'haltOnError': str(self._halt_on_error).lower(),
            'owner': self._owner,
            'version': 'V2',
        }
        if self._playbook_triggers_enabled is not None:
            _settings['playbookTriggersEnabled'] = str(self._playbook_triggers_enabled).lower()
        if self._hash_collision_mode is not None:
            _settings['hashCollisionMode'] = self._hash_collision_mode
        if self._file_merge_mode is not None:
            _settings['fileMergeMode'] = self._file_merge_mode
        return _settings