groupingKey has wrong type decleration

endclothing / prometheus_client_php

Prometheus instrumentation library for PHP applications

https://prometheus.io/docs/concepts/metric_types/

Apache License 2.0

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groupingKey has wrong type decleration #15

Closed kswzr closed 4 years ago

kswzr commented 5 years ago

Currently the Prometheus/PushGateway specifies the $groupingKey in push & pushAdd as null which should be an empty array per default, but the decleration does not allow that.

Unfortunately the application crashes.