package ecaml

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package ecaml
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An Returns.t states the return type of a function and whether the function returns a value of that type directly or via a Deferred.t. An (a, a) Returns.t means that the function returns a directly. An (a, a Deferred.t) Returns.t means that the function returns a via an a Deferred.t.

type (_, _) t =
  1. | Returns : 'a Ecaml_value.Value.Type.t -> ('a, 'a) t
  2. | Returns_deferred : 'a Ecaml_value.Value.Type.t -> ('a, 'a Async_kernel.Deferred.t) t
val sexp_of_t : ('v_x__001_ -> Ppx_sexp_conv_lib.Sexp.t) -> ('v_x__002_ -> Ppx_sexp_conv_lib.Sexp.t) -> ('v_x__001_, 'v_x__002_) t -> Ppx_sexp_conv_lib.Sexp.t
val returns : ('a, 'b) Sync_or_async.t -> 'a Ecaml_value.Value.Type.t -> ('a, 'b) t