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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 _from_dict(cls, _dict):
 """Initialize a LeadingSentence object from a json dictionary."""

        args = {}
        if 'text' in _dict:
            args['text'] = _dict.get('text')
        if 'location' in _dict:
            args['location'] = Location._from_dict(_dict.get('location'))
        if 'element_locations' in _dict:
            args['element_locations'] = [
                ElementLocations._from_dict(x)
                for x in (_dict.get('element_locations'))
            ]
        return cls(**args)