An SLI measuring performance on a well-known service type.
Performance will be computed on the basis of pre-defined metrics. The
type of the service_resource determines the metrics to use and the
service_resource.labels and metric_labels are used to construct
a monitoring filter to filter that metric down to just the data relevant
to this service.
OPTIONAL: The set of locations to which this SLI is relevant.
Telemetry from other locations will not be used to calculate
performance for this SLI. If omitted, this SLI applies to all
locations in which the Service has activity. For service types
that don’t support breaking down by location, setting this
field will result in an error.
This SLI can be evaluated on the basis of availability or
latency.
Good service is defined to be the count of requests made to
this service that are fast enough with respect to
latency.threshold.