(Info-goto-node "(elisp)Customization")
module Group : sig ... end
val defcustom : Core_kernel.Source_code_position.t ‑> Symbol.t ‑> Type.t ‑> docstring:string ‑> group:Group.t ‑> standard_value:Value.t ‑> unit
(describe-function 'defcustom)
(Info-goto-node "(elisp)Variable Definitions")