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Full stack isomorphic Elixir web framework that can be used on top of Phoenix.

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hologram lib hologram server broadcast.ex
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lib/hologram/server/broadcast.ex 

defmodule Hologram.Server.Broadcast do

  @moduledoc """

  A single broadcast entry queued on `Hologram.Server`'s `broadcasts` field.



  `except` lists identities (`{:instance, id}`, `{:session, id}`, `{:user, id}`)

  that should not receive the broadcast. Empty list means no exclusions.

  """



  @type identity ::

          {:instance, String.t()} | {:session, String.t()} | {:user, integer | String.t() | atom}



  @enforce_keys [:channel, :action_name]

  defstruct [:channel, :action_name, params: %{}, except: []]



  @type t :: %__MODULE__{

          channel: atom | tuple,

          action_name: atom,

          params: map,

          except: [identity]

        }

end