author: VSS_Common_Contracts.IdentityRef. The author of the change.
displayUri: string. The location of a user-friendly representation of the resource.
id: string. Something that identifies the change. For a commit, this would be the SHA1. For a TFVC changeset, this would be the changeset id.
location: string. The location of the full representation of the resource.
message: string. A description of the change. This might be a commit message or changeset description.
messageTruncated: boolean. Indicates whether the message was truncated
timestamp: Date. A timestamp for the change.
type: string. The type of change. "commit", "changeset", etc.