GetFloat64Metric finds the metric matching provided name and labels.

NewFloat64Metric create a Float64Metric metrics, returns nil when viewName is empty.

NewInt64Metric create a Int64Metric metric, returns nil when viewName is empty.

ParsePrometheusMetrics parses Prometheus formatted metrics into metrics under Float64MetricRepresentation.

LastValue means last measurement overwrites previous measurements (gauge metric).

Sum means last measurement will be added onto previous measurements (counter metric).

FakeInt64Metric implements Int64MetricInterface.

Float64Metric represents an float64 metric.

Float64MetricRepresentation represents a snapshot of a float64 metrics.

Int64Metric represents an int64 metric.

Int64MetricRepresentation represents a snapshot of an int64 metrics.

Int64MetricInterface is used to create test double for Int64Metric.

Aggregation defines how measurements should be aggregated into data points.