code: func (s *Scheme) AddStructFieldConversion(srcFieldType interface{}, srcFieldName string, destFieldType interface{}, destFieldName string) error {
  	return s.raw.AddStructFieldConversion(srcFieldType, srcFieldName, destFieldType, destFieldName)
  }
docs: // AddStructFieldConversion allows you to specify a mechanical copy for a moved
  // or renamed struct field without writing an entire conversion function. See
  // the comment in conversion.Converter.SetStructFieldCopy for parameter details.
  // Call as many times as needed, even on the same fields.