glean_parser/schemas/metrics.1-0-0.schema.yaml [101:118]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
            - `memory_distribution`: A histogram for recording memory usage
              values. Additional properties: `memory_unit`.

            - `custom_distribution`: A histogram with a custom range and number
              of buckets. This metric type is for legacy support only and is
              only allowed for metrics coming from GeckoView. Additional
              properties: `range_min`, `range_max`, `bucket_count`,
              `histogram_type`.

            - `rate`: Used to record the rate something happens relative to some
              other thing. For example, the number of HTTP connections that
              experience an error relative to the number of total HTTP
              connections made.

            - Additionally, labeled versions of many metric types are supported.
              These support the `labels`_ parameter, allowing multiple instances
              of the metric to be stored at a given set of labels. The labeled
              metric types include:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -



glean_parser/schemas/metrics.2-0-0.schema.yaml [104:121]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
            - `memory_distribution`: A histogram for recording memory usage
              values. Additional properties: `memory_unit`.

            - `custom_distribution`: A histogram with a custom range and number
              of buckets. This metric type is for legacy support only and is
              only allowed for metrics coming from GeckoView. Additional
              properties: `range_min`, `range_max`, `bucket_count`,
              `histogram_type`.

            - `rate`: Used to record the rate something happens relative to some
              other thing. For example, the number of HTTP connections that
              experience an error relative to the number of total HTTP
              connections made.

            - Additionally, labeled versions of many metric types are supported.
              These support the `labels`_ parameter, allowing multiple instances
              of the metric to be stored at a given set of labels. The labeled
              metric types include:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -



