<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _from_dict(cls, _dict):
 """Initialize a WorkspaceSystemSettings object from a json dictionary."""

        args = {}
        if 'tooling' in _dict:
            args['tooling'] = WorkspaceSystemSettingsTooling._from_dict(
                _dict.get('tooling'))
        if 'disambiguation' in _dict:
            args[
                'disambiguation'] = WorkspaceSystemSettingsDisambiguation._from_dict(
                    _dict.get('disambiguation'))
        if 'human_agent_assist' in _dict:
            args['human_agent_assist'] = _dict.get('human_agent_assist')
        return cls(**args)