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diff --git a/lib/prometheus/collector.ex b/lib/prometheus/collector.ex
index 9e01748..fd2a0b6 100644
--- a/lib/prometheus/collector.ex
+++ b/lib/prometheus/collector.ex
@@ -1,70 +1,70 @@
defmodule Prometheus.Collector do
@moduledoc """
A collector for a set of metrics.
Normal users should use `Prometheus.Metric.Gauge`, `Prometheus.Metric.Counter`, `Prometheus.Metric.Summary`
and `Prometheus.Metric.Histogram`.
Implementing `:prometheus_collector` behaviour is for advanced uses, such as proxying metrics from another monitoring system.
It is it the responsibility of the implementer to ensure produced metrics are valid.
You will be working with Prometheus data model directly (see `Prometheus.Model` ).
"""
require Prometheus.Error
defmacro __using__(_opts) do
quote location: :keep do
@behaviour :prometheus_collector
require Prometheus.Error
require Prometheus.Model
def deregister_cleanup(_registry) do
:ok
end
defoverridable [deregister_cleanup: 1]
end
end
@doc """
Equivalent to `Prometheus.Registry.register_collector/2`.
"""
defmacro register(collector, registry \\ :default) do
quote do
require Prometheus.Error
Prometheus.Error.with_prometheus_error(
:prometheus_registry.register_collector(unquote(registry), unquote(collector))
)
end
end
@doc """
Equivalent to `Prometheus.Registry.deregister_collector/2`.
"""
defmacro deregister(collector, registry \\ :default) do
quote do
require Prometheus.Error
Prometheus.Error.with_prometheus_error(
:prometheus_registry.deregister_collector(unquote(registry), unquote(collector))
)
end
end
@doc """
Calls `callback` for each MetricFamily of this collector.
"""
defmacro collect_mf(collector, callback, registry \\ :default) do
quote do
require Prometheus.Error
Prometheus.Error.with_prometheus_error(
- :prometheus_collector.collect_mf(unquote(collector), unquote(callback), unquote(registry))
+ :prometheus_collector.collect_mf(unquote(registry), unquote(collector), unquote(callback))
)
end
end
end

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