@type request_key() :: Kadena.Types.Base64Url.t()

@type t() :: %Kadena.Chainweb.Pact.SPVRequestBody{
  request_key: request_key(),
  target_chain_id: target_chain_id()
}

@type target_chain_id() :: Kadena.Types.ChainID.t()

@type validation() :: {:ok, value()} | {:error, Keyword.t()}

@type value() :: request_key() | target_chain_id()