GetAllIssueLinks retrieves the linked issue carried by the error or its direct causes.

GetIssueLink retrieves the linked issue annotation carried by the error, or false if there is no such annotation.

HasIssueLink returns true iff the error or one of its causes has a linked issue payload.

HasUnimplementedError returns iff if err or its cause is an unimplemented error.

IsIssueLink returns true iff the error (not its causes) has a linked issue payload.

IsUnimplementedError returns iff if err is an unimplemented error.

UnimplementedError creates a new leaf error that indicates that some feature was not (yet) implemented.

UnimplementedErrorf creates a new leaf error that indicates that some feature was not (yet) implemented.

WithIssueLink adds an annotation to a know issue on a web issue tracker.

UnimplementedErrorHint is the hint emitted upon unimplemented errors.

IssueLink is the payload for a linked issue annotation.