While using the Box .NET(Gen) SDK I noticed that the TemplateSigner class is missing the label field. However when calling the Box API via curl to get sign templates the label field is a part of the signer objects in the signers array on sign templates.
I assume it is supposed to be accessible as this forum post describes the signer object as having the label field. https://community.box.com/topic/show?tid=477&fid=9
Unfortunately, the label field is missing on the Signers object on this page Box Sign template - API Reference - Box Developer Documentation of the Box Developer Documentation. Upon closer inspection it also appears to be missing on all of the SDKs TemplateSigner classes.