# Note: It is very important to pre-declare any metrics before using them.
# Add a new declaration for any new metrics you create. See:
# https://metacpan.org/pod/Prometheus::Tiny#declare
$prom->declare(
    "notify_plugin_executions",
    type => "counter",
    help => "Number of times each plugin has been called by channel."
);
$prom->declare(
    "notify_plugin_runtime",
    type => "histogram",
    help => "Number of seconds spent executing each plugin by channel."
);
$prom->declare(
    "notify_plugin_success",
    type => "counter",
    help => "Number of successful executions of this plugin on this channel."
);
$prom->declare(
    "notify_plugin_error",
    type => "counter",
    help => "Number of failed executions of this plugin on this channel."
);
$prom->declare(
    "event_loop_iterations",
    type => "counter",
    help => "Number of iterations through the event loop. Incremented at the start of the event loop."
);
$prom->declare(
    "event_received",
    type => "counter",
    help => "Timestamp of the last time a new event was received."
);
$prom->declare(
    "notify_event",
    type => "counter",
    help => "Number of events received on the given channel."
);
$prom->declare(
    "notify_event_error",
    type => "counter",
    help => "Number of events received that were unprocessable by channel."
);