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packages/nimble-components/src/global-type-extensions.d.ts

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+// This file has modifications to global types used for nimble-components builds:
+// - The types file should not be in the build output
+//   - You should not see a file with these types created in the dist build
+// - Type additions added to this file should not appear in any public API definitions
+//   - The fields added to global types should not be observable in any built .d.ts file by TypeScript. To verify you can do a text search of generated .d.ts files in the dist folder for the fields being added and verify they are not associated with the augmented types.
+// -  This file should only impact the nimble-components library build and not users of nimble-components. Any type changes that impact clients should not be placed here.
+
+/**
+ * This is a workaround for an incomplete definition of the native dialog element. Remove when using Typescript >=4.8.3.
+ * https://github.com/microsoft/TypeScript/issues/48267
+ * @internal
+ */
+interface HTMLDialogElement {
+    showModal(): void;
+    close(returnValue?: string): void;
+}
+
+declare namespace Intl {
+    // roundingPriority has been supported by browsers since 8/23, but TypeScript still hasn't
+    // added it to the type definition. See https://github.com/microsoft/TypeScript/issues/56269
+    interface NumberFormatOptions {
+        roundingPriority?:
+        | 'auto'
+        | 'morePrecision'
+        | 'lessPrecision'
+        | undefined;
+    }
+}