docs: def fromjson(cls, json_string: str) -> 'Event':
          """Create a new Event from a from a psycopg2-pgevent event JSON.
  
          Parameters
          ----------
          json_string: str
              Valid psycopg2-pgevent event JSON.
  
          Returns
          -------
          Event
              Event created from JSON deserialization.
  
          """
          obj = json.loads(json_string)
          return cls(
              UUID(obj['event_id']),
              obj['event_type'],
              obj['schema_name'],
              obj['table_name'],
              obj['row_id']
          )