Uopt_core.LocalSame as their global equivalents.
val some : 'a @ local -> 'a t @ localval value : 'a t @ local -> (default:'a @ local -> 'a @ local) @ localval value_exn : 'a t @ local -> 'a @ localval unsafe_value : 'a t @ local -> 'a @ localval to_option : 'a t @ local -> 'a Base.option @ localval of_option : 'a Base.option @ local -> 'a t @ localmodule Optional_syntax : sig ... end