This function returns t
if object is a record.
This function creates and returns a record whose type is type and remaining slots are the rest of the arguments, objects.
This function returns a new record with type type and length more slots, each initialized to object.
Copyright © 1990-1996, 1998-2019 Free Software Foundation, Inc.
Licensed under the GNU GPL license.
https://www.gnu.org/software/emacs/manual/html_node/elisp/Record-Functions.html