{
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          "spec_url": "https://wicg.github.io/custom-state-pseudo-class/#customstateset",
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            },
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          },
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          }
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          "spec_url": "https://wicg.github.io/custom-state-pseudo-class/#customstateset",
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            },
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                {
                  "type": "preference",
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                }
              ]
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            },
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
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          },
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            "standard_track": true,
            "deprecated": false
          }
        }
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          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CustomStateSet/entries",
          "spec_url": "https://wicg.github.io/custom-state-pseudo-class/#customstateset",
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            },
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                }
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            },
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            "opera": "mirror",
            "opera_android": "mirror",
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          },
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            "standard_track": true,
            "deprecated": false
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          "spec_url": "https://wicg.github.io/custom-state-pseudo-class/#customstateset",
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            },
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                }
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            },
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            "opera": "mirror",
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            "safari": {
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            },
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            "webview_android": "mirror"
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
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        }
      },
      "has": {
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          "spec_url": "https://wicg.github.io/custom-state-pseudo-class/#customstateset",
          "support": {
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              "version_added": "90"
            },
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                {
                  "type": "preference",
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                }
              ]
            },
            "firefox_android": "mirror",
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              "version_added": false
            },
            "oculus": "mirror",
            "opera": "mirror",
            "opera_android": "mirror",
            "safari": {
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            },
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            "samsunginternet_android": "mirror",
            "webview_android": "mirror"
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
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        }
      },
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          "spec_url": "https://wicg.github.io/custom-state-pseudo-class/#customstateset",
          "support": {
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              "version_added": "90"
            },
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                {
                  "type": "preference",
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                }
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              "version_added": false
            },
            "oculus": "mirror",
            "opera": "mirror",
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            "safari": {
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            },
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            "webview_android": "mirror"
          },
          "status": {
            "experimental": true,
            "standard_track": true,
            "deprecated": false
          }
        }
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      "size": {
        "__compat": {
          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CustomStateSet/size",
          "spec_url": "https://wicg.github.io/custom-state-pseudo-class/#customstateset",
          "support": {
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            },
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          },
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            "experimental": true,
            "standard_track": true,
            "deprecated": false
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          "mdn_url": "https://developer.mozilla.org/docs/Web/API/CustomStateSet/values",
          "spec_url": "https://wicg.github.io/custom-state-pseudo-class/#customstateset",
          "support": {
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            },
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          },
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  }
}