A single change whcih has occoured to a record

protocol get timestamp

let output = value.timestamp

Allows a get operation to work.

protocol get change

let output = value.change

Allows a get operation to work.

protocol get model

let output = value.model

Allows a get operation to work.

protocol get record

let output = value.record

Allows a get operation to work.

protocol get user

let output = value.user

Allows a get operation to work.

protocol partial_eq

if value == b { }

Allows for partial equality operations to work.

protocol string_debug

println("{:?}", value)

Allows the value to be debug printed.

protocol string_display

println("{}", value)

Allows the value to be display printed.