-record(builder, {
    host :: binary(),
    port :: integer(),
    ipv6 :: boolean(),
    timeout :: integer(),
    send :: fun((pgl@internal@socket:internal_socket(), bitstring()) -> {ok,
            nil} |
        {error, pgl@internal:posix_error()}),
    'receive' :: fun((pgl@internal@socket:internal_socket(), integer(), integer()) -> {ok,
            bitstring()} |
        {error, pgl@internal:posix_error()}),
    shutdown :: fun((pgl@internal@socket:internal_socket()) -> {ok, nil} |
        {error, pgl@internal:posix_error()})
}).