Deprecated should be used only by Core_extended.Deprecated_command. At some point
it will go away.
module Spec : sig ... endval summary : t ‑> stringval help_recursive : cmd:string ‑> with_flags:bool ‑> expand_dots:bool ‑> t ‑> string ‑> (string * string) listval run : t ‑> cmd:string ‑> args:string list ‑> is_help:bool ‑> is_help_rec:bool ‑> is_help_rec_flags:bool ‑> is_expand_dots:bool ‑> unitval get_flag_names : t ‑> string list