code: def to_entity(entity_type, value, fields):
      
      e = entity_type(value)
      for k, v in fields.items():
          e.fields[k] = Field(k, v)
      return e
docs: Internal API: Returns an instance of an entity of type entity_type with the specified value and fields (stored in
      dict). This is only used by the local transform runner as a helper function.