Marshal is equivalent to json.Marshal.

MarshalWriter is similar to Marshal, but encodes directly to a writer.

ParseInt64 is a helper for safely parsing values found in JSON to int64.

ParseUint64 is a helper for safely parsing values found in JSON to uint64.

Unmarshal is similar to json.Unmarshal, but decodes numbers as json.Number instead of float64.

UnmarshalBytes is similar to Unmarshal, but takes a bytes slice instead of an io.Reader.