datetime(lager_msg()) -> {string(), string()}.

destinations(lager_msg()) -> no_return().

message(lager_msg()) -> list().

metadata(lager_msg()) -> [tuple()].

new(list(), lager:log_level(), [tuple()], list()) -> lager_msg().

new(list(), erlang:timestamp(), lager:log_level(), [tuple()], list()) -> lager_msg().

severity(lager_msg()) -> lager:log_level().

severity_as_int(lager_msg()) -> lager:log_level_number().

timestamp(lager_msg()) -> erlang:timestamp().