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(* SPDX-License-Identifier: MIT                                              *)
(* Copyright (c) 2023 Nomadic Labs, <contact@nomadic-labs.com>               *)
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(** Adding and removing unstaked frozen stake can be done from/toward a
    delegate, one of its staker, or both the delegate and all its stakers at
    once. We need to distinguish these cases to enforce the staking
    over baking limit. *)
type t =
  | Single of Contract_repr.t * Signature.public_key_hash
      (** A single staker, either the delegate itself or one of its staker. *)
  | Shared of Signature.public_key_hash
      (** The delegate and all its stakers simultaneously. *)

val encoding : t Data_encoding.t

val compare : t -> t -> int

val delegate : t -> Signature.public_key_hash