{
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        {
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        {
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        {
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      ],
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        {
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        {
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        {
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            "iframe_miss",
            "top_cookie_hit",
            "top_cookie_hit_opt_in",
            "top_cookie_hit_opt_out",
            "top_cookie_miss",
            "iframe_cookie_hit",
            "iframe_cookie_hit_opt_in",
            "iframe_cookie_hit_opt_out",
            "iframe_cookie_miss",
            "top_click_hit",
            "top_click_hit_opt_in",
            "top_click_hit_opt_out",
            "top_click_miss",
            "iframe_click_hit",
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            "iframe_click_hit_opt_out",
            "iframe_click_miss"
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        {
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            "iframe_miss",
            "top_cookie_hit",
            "top_cookie_hit_opt_in",
            "top_cookie_hit_opt_out",
            "top_cookie_miss",
            "iframe_cookie_hit",
            "iframe_cookie_hit_opt_in",
            "iframe_cookie_hit_opt_out",
            "iframe_cookie_miss",
            "top_click_hit",
            "top_click_hit_opt_in",
            "top_click_hit_opt_out",
            "top_click_miss",
            "iframe_click_hit",
            "iframe_click_hit_opt_in",
            "iframe_click_hit_opt_out",
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          ]
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        [
          "metrics"
        ],
        "ping",
        false
      ]
    ],
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        "timing_distribution",
        "handle_duration",
        [
          "metrics"
        ],
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        {
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        {
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            "fail_banner_not_found",
            "fail_banner_not_visible",
            "fail_button_not_found",
            "fail_no_rule_for_mode",
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        [
          "crash"
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        {
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        [
          "crash"
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        "ping",
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        {
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        {
          "ordered_labels": [
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        {
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      ]
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        ],
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        {
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          ]
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        "startup_cache_load_time",
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          "metrics"
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        "application",
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        {
          "time_unit": "millisecond"
        }
      ]
    ],
    "extensions.apis.dnr": [
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        "evaluate_rules_count_max",
        [
          "metrics"
        ],
        "ping",
        false
      ],
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        "evaluate_rules_time",
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        "application",
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        {
          "time_unit": "millisecond"
        }
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        {
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        {
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        {
          "time_unit": "millisecond"
        }
      ]
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          "metrics"
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        "ping",
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        {
          "time_unit": "millisecond"
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        {
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        {
          "time_unit": "microsecond"
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          "metrics"
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          "metrics"
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      ],
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            "cert_pin_unknown_error",
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        ],
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      ]
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      ],
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        {
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    ],
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      ],
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        {
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        {
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        {
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        {
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        "ping",
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        {
          "bucket_count": 100,
          "histogram_type": "exponential",
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          "range_min": 0
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        "ping",
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        {
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        {
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        {
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        "ping",
        false,
        {
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        false
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        [
          "newtab"
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        false
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        "newtab_category",
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        "application",
        false
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        false,
        {
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        false
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        "issued",
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          "newtab"
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        "ping",
        false,
        {
          "allowed_extra_keys": [
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            "telemetry_id"
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        "ping",
        false,
        {
          "allowed_extra_keys": [
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        "ping",
        false,
        {
          "allowed_extra_keys": [
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        "ping",
        false,
        {
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        "ping",
        false,
        {
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        "ping",
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        {
          "allowed_extra_keys": [
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        {
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        {
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        {
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        "build_displaylist_time",
        [
          "metrics"
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        "ping",
        false,
        {
          "time_unit": "nanosecond"
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      ]
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        false,
        {
          "ordered_labels": [
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            "presentation_mode_keyboard",
            "view_bookmark",
            "first_page",
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            "page_rotate_cw",
            "page_rotate_ccw",
            "cursor_select_tool",
            "cursor_hand_tool",
            "scroll_page",
            "scroll_vertical",
            "scroll_horizontal",
            "scroll_wrapped",
            "spread_none",
            "spread_odd",
            "spread_even",
            "document_properties"
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      ],
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        "editing",
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        "ping",
        false,
        {
          "ordered_labels": [
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          ]
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        "geckoview",
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        ],
        "ping",
        false,
        {
          "ordered_labels": [
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            "open_in_app_tapped",
            "open_in_app_just_once",
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            "download_succeeded",
            "save_as_pdf_tapped"
          ]
        }
      ],
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        [
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        ],
        "ping",
        false,
        {
          "bucket_count": 50,
          "histogram_type": "exponential",
          "range_max": 10000,
          "range_min": 1
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      ],
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        [
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        ],
        "ping",
        false
      ]
    ],
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        [
          "pageload"
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        false,
        {
          "allowed_extra_keys": [
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            "fcp_time",
            "http_ver",
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            "load_time",
            "load_type",
            "redirect_count",
            "redirect_time",
            "response_time",
            "same_origin_nav",
            "trr_domain"
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        ],
        "ping",
        false
      ],
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        ],
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        {
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        ],
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        false,
        {
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        {
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        "application",
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          "newtab"
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        "ping",
        false,
        {
          "allowed_extra_keys": [
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        "application",
        false
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        false,
        {
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        "application",
        false
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          "newtab"
        ],
        "ping",
        false,
        {
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        false
      ],
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            "web.background",
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          ]
        }
      ],
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        {
          "ordered_labels": [
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        }
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        ],
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        }
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      ],
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    ],
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        {
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        {
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      ],
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        {
          "numerators": [
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              "ping",
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              null
            ],
            [
              "fail_no_transactionid",
              "rtcrtpsender.setparameters",
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                "metrics"
              ],
              "ping",
              false,
              null
            ],
            [
              "fail_other",
              "rtcrtpsender.setparameters",
              [
                "metrics"
              ],
              "ping",
              false,
              null
            ],
            [
              "fail_rid_changed",
              "rtcrtpsender.setparameters",
              [
                "metrics"
              ],
              "ping",
              false,
              null
            ],
            [
              "fail_stale_transactionid",
              "rtcrtpsender.setparameters",
              [
                "metrics"
              ],
              "ping",
              false,
              null
            ]
          ]
        }
      ],
      [
        "denominator",
        "count_setparameters_compat",
        [
          "metrics"
        ],
        "ping",
        false,
        {
          "numerators": [
            [
              "fail_no_encodings",
              "rtcrtpsender.setparameters",
              [
                "metrics"
              ],
              "ping",
              false,
              null
            ],
            [
              "warn_length_changed",
              "rtcrtpsender.setparameters",
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                "metrics"
              ],
              "ping",
              false,
              null
            ],
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              "warn_no_getparameters",
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                "metrics"
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              "ping",
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              null
            ],
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                "metrics"
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              "ping",
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              null
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                "metrics"
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              "ping",
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              null
            ]
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        "rate",
        "used_sendencodings",
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          "metrics"
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        "ping",
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          "metrics"
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        "ping",
        false,
        {
          "ordered_labels": null
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        "labeled_counter",
        "blame_no_getparameters",
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        "ping",
        false,
        {
          "ordered_labels": null
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        {
          "ordered_labels": null
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          "metrics"
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          "metrics"
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      ],
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      ],
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          "metrics"
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        false
      ]
    ],
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        "changed",
        [
          "events"
        ],
        "ping",
        false,
        {
          "allowed_extra_keys": [
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            "new_display_name",
            "new_engine_id",
            "new_load_path",
            "new_submission_url",
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          "metrics"
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          "metrics",
          "newtab"
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        false
      ],
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          "metrics"
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        false
      ],
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          "metrics"
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        "application",
        false
      ],
      [
        "string",
        "verified",
        [
          "metrics"
        ],
        "application",
        false
      ]
    ],
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      [
        "event",
        "changed",
        [
          "events"
        ],
        "ping",
        false,
        {
          "allowed_extra_keys": [
            "change_source",
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      ],
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      ],
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          "metrics"
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        false
      ],
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          "metrics"
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      ]
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        "timing_distribution",
        "startup_time",
        [
          "metrics"
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        "ping",
        false,
        {
          "time_unit": "nanosecond"
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      ]
    ],
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        "abandonment",
        [
          "events"
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        "ping",
        false,
        {
          "allowed_extra_keys": [
            "impression_id",
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        "event",
        "ad_impression",
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          "events"
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        "ping",
        false,
        {
          "allowed_extra_keys": [
            "ads_hidden",
            "ads_loaded",
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        ],
        "ping",
        false,
        {
          "time_unit": "millisecond"
        }
      ],
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        "event",
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        [
          "events"
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        "ping",
        false,
        {
          "allowed_extra_keys": [
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          "events"
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        "ping",
        false,
        {
          "allowed_extra_keys": [
            "impression_id",
            "is_shopping_page",
            "partner_code",
            "provider",
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            "tagged"
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        [
          "test-ping"
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        false
      ],
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          "test-ping"
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        false
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        [
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        {
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      ],
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      ],
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        [
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        false
      ],
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        [
          "test-ping"
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        "ping",
        false,
        {
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      ],
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        {
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        {
          "ordered_labels": null
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      ],
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        {
          "ordered_labels": null
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        {
          "ordered_labels": null
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        {
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      ],
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        {
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        {
          "ordered_labels": null
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      ],
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        {
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        false
      ],
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        {
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      ],
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        {
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        {
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      ],
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        [
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      [
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        {
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      ],
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        {
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      ]
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        {
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      ],
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      ],
      [
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      ],
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        {
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      ],
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        {
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        {
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              null
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      [
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      ],
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        "ping",
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        {
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      ],
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        {
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        [
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        "ping",
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        {
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          "histogram_type": "exponential",
          "range_max": 80,
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      ]
    ],
    "top_sites": [
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          "top-sites"
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      ],
      [
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      ],
      [
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      ],
      [
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        false
      ],
      [
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        [
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      ],
      [
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      ],
      [
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      ]
    ],
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          "newtab"
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        {
          "allowed_extra_keys": [
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        {
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        "application",
        false
      ],
      [
        "boolean",
        "sponsored_enabled",
        [
          "newtab"
        ],
        "application",
        false
      ]
    ],
    "translations": [
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          "events"
        ],
        "ping",
        false,
        {
          "allowed_extra_keys": [
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          ]
        }
      ],
      [
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      ],
      [
        "denominator",
        "requests_count",
        [
          "metrics"
        ],
        "ping",
        false,
        {
          "numerators": [
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              [
                "metrics"
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              "ping",
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              null
            ]
          ]
        }
      ],
      [
        "event",
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        [
          "events"
        ],
        "ping",
        false,
        {
          "allowed_extra_keys": [
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            "from_language",
            "to_language"
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    "translations.panel": [
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        [
          "events"
        ],
        "ping",
        false,
        {
          "allowed_extra_keys": [
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        }
      ]
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    "update": [
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        "auto_download",
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          "background-update"
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        "application",
        false
      ],
      [
        "boolean",
        "background_update",
        [
          "background-update"
        ],
        "application",
        false
      ],
      [
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        "can_usually_apply_updates",
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        ],
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        false
      ],
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        false
      ],
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        ],
        "application",
        false
      ],
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        "application",
        false
      ],
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          "background-update"
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        "application",
        false
      ],
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        [
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        ],
        "application",
        false
      ],
      [
        "boolean",
        "service_enabled",
        [
          "background-update"
        ],
        "application",
        false
      ]
    ],
    "urlbar": [
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        "abandonment",
        [
          "events"
        ],
        "ping",
        true,
        {
          "allowed_extra_keys": [
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            "interaction",
            "n_chars",
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            "n_words",
            "results",
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            "search_mode"
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        }
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        [
          "events"
        ],
        "ping",
        true,
        {
          "allowed_extra_keys": [
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            "provider",
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            "sap",
            "search_mode",
            "selected_result",
            "selected_result_subtype"
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        }
      ],
      [
        "event",
        "exposure",
        [
          "events"
        ],
        "ping",
        false,
        {
          "allowed_extra_keys": [
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        }
      ],
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        "impression",
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        ],
        "ping",
        true,
        {
          "allowed_extra_keys": [
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      ],
      [
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        [
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        ],
        "application",
        false
      ],
      [
        "boolean",
        "pref_suggest_topsites",
        [
          "events"
        ],
        "application",
        false
      ]
    ],
    "wr": [
      [
        "timing_distribution",
        "framebuild_time",
        [
          "metrics"
        ],
        "ping",
        false,
        {
          "time_unit": "microsecond"
        }
      ],
      [
        "timing_distribution",
        "gpu_wait_time",
        [
          "metrics"
        ],
        "ping",
        false,
        {
          "time_unit": "microsecond"
        }
      ],
      [
        "timing_distribution",
        "rasterize_blobs_time",
        [
          "metrics"
        ],
        "ping",
        false,
        {
          "time_unit": "microsecond"
        }
      ],
      [
        "timing_distribution",
        "rasterize_glyphs_time",
        [
          "metrics"
        ],
        "ping",
        false,
        {
          "time_unit": "microsecond"
        }
      ],
      [
        "timing_distribution",
        "renderer_time",
        [
          "metrics"
        ],
        "ping",
        false,
        {
          "time_unit": "microsecond"
        }
      ],
      [
        "timing_distribution",
        "renderer_time_no_sc",
        [
          "metrics"
        ],
        "ping",
        false,
        {
          "time_unit": "microsecond"
        }
      ],
      [
        "timing_distribution",
        "scenebuild_time",
        [
          "metrics"
        ],
        "ping",
        false,
        {
          "time_unit": "microsecond"
        }
      ],
      [
        "timing_distribution",
        "sceneswap_time",
        [
          "metrics"
        ],
        "ping",
        false,
        {
          "time_unit": "microsecond"
        }
      ],
      [
        "timing_distribution",
        "texture_cache_update_time",
        [
          "metrics"
        ],
        "ping",
        false,
        {
          "time_unit": "microsecond"
        }
      ],
      [
        "timing_distribution",
        "time_to_frame_build",
        [
          "metrics"
        ],
        "ping",
        false,
        {
          "time_unit": "microsecond"
        }
      ],
      [
        "timing_distribution",
        "time_to_render_start",
        [
          "metrics"
        ],
        "ping",
        false,
        {
          "time_unit": "microsecond"
        }
      ]
    ]
  },
  "pings": [
    [
      "messaging-system",
      false,
      false,
      []
    ],
    [
      "newtab",
      true,
      false,
      [
        "component_init",
        "newtab_session_end"
      ]
    ],
    [
      "top-sites",
      false,
      false,
      []
    ],
    [
      "quick-suggest",
      false,
      false,
      []
    ],
    [
      "pageload",
      false,
      false,
      [
        "startup",
        "threshold"
      ]
    ],
    [
      "background-tasks",
      false,
      false,
      []
    ],
    [
      "crash",
      true,
      false,
      [
        "crash",
        "event_found"
      ]
    ],
    [
      "one-ping-only",
      false,
      true,
      []
    ],
    [
      "test-ping",
      false,
      true,
      []
    ],
    [
      "first-startup",
      true,
      false,
      []
    ],
    [
      "background-update",
      true,
      false,
      [
        "backgroundupdate_task"
      ]
    ]
  ]
}