A function that takes a list of strings as argument and does some side effect.
A CLI command has a unique name, an optional help text that shows the usage, a description that gives background information and the actual CLI function.
val run : t list -> string list option -> unit Lwt.tCall run commands args in the main Sihl app executable to pass command line arguments to all registered commands. This is the main entry point to a Sihl app. An optional list of arguments args can be passed, if None is passed, it reads the arguments from Sys.argv.
val sexp_of_t : t -> Sexplib0.Sexp.tsexp_of_t t converts the command t to an s-expression
val pp : Stdlib.Format.formatter -> t -> unitpp formats the command t as an s-expression