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open Error_monad

type error_code

type t =
  | No_motive
  | Too_many_connections
  | Already_connected
  | Unknown_chain_name
  | Deprecated_distributed_db_version
  | Deprecated_p2p_version
  | Unknown_motive of error_code

val pp : Format.formatter -> t -> unit

val pp_short : Format.formatter -> t -> unit

val encoding : t Data_encoding.t

type error += Rejecting of {motive : t}

val rejecting : t -> 'a tzresult