A condition type that checks that monitored resources are reporting
data. The configuration defines a metric and a set of monitored
resources. The predicate is considered in violation when a time series
for the specified metric of a monitored resource does not include any
data in the specified duration.
.. attribute:: filter
A filter
<https://cloud.google.com/monitoring/api/v3/filters> that
identifies which time series should be compared with the
threshold. The filter is similar to the one that is specified
in the `ListTimeSeries request <https://cloud.google.com/m
onitoring/api/ref_v3/rest/v3/projects.timeSeries/list>`
(that call is useful to verify the time series that will be
retrieved / processed) and must specify the metric type and
optionally may contain restrictions on resource type, resource
labels, and metric labels. This field may not exceed 2048
Unicode characters in length.
The amount of time that a time series must fail to report new
data to be considered failing. Currently, only values that are
a multiple of a minute--e.g. 60, 120, or 300 seconds--are
supported. If an invalid value is given, an error will be
returned. The Duration.nanos field is ignored.