docs: def _from_dict(cls, _dict):
          """Initialize a Conversions object from a json dictionary."""
          args = {}
          if 'pdf' in _dict:
              args['pdf'] = PdfSettings._from_dict(_dict.get('pdf'))
          if 'word' in _dict:
              args['word'] = WordSettings._from_dict(_dict.get('word'))
          if 'html' in _dict:
              args['html'] = HtmlSettings._from_dict(_dict.get('html'))
          if 'segment' in _dict:
              args['segment'] = SegmentSettings._from_dict(_dict.get('segment'))
          if 'json_normalizations' in _dict:
              args['json_normalizations'] = [
                  NormalizationOperation._from_dict(x)
                  for x in (_dict.get('json_normalizations'))
              ]
          return cls(**args)