The action adds data.

The action changes data.

The action removes data.

Action represents a single unit of difference between one API structure and another.

Class represents an Action that applies to a rbxapi.Class.

Differ is implemented by any value that has a Diff method, which returns the differences between two structures as a list of Actions.

Enum represents an Action that applies to a rbxapi.Enum.

EnumItem represents an Action that applies to a rbxapi.EnumItem.

Member represents an Action that applies to a rbxapi.Member.

Patcher is implemented by any value that has a Patch method, which applies a given list of Actions to a structure.

Type indicates the kind of transformation performed by an Action.