gradio

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type PromiseImplFn<T> = ConstructorParameters<typeof Promise<T>>[0];
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export class PromiseDelegate<T> {
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	private promiseInternal: Promise<T>;
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	private resolveInternal!: Parameters<PromiseImplFn<T>>[0];
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	private rejectInternal!: Parameters<PromiseImplFn<T>>[1];
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	constructor() {
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		this.promiseInternal = new Promise((resolve, reject) => {
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			this.resolveInternal = resolve;
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			this.rejectInternal = reject;
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		});
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	}
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	get promise(): Promise<T> {
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		return this.promiseInternal;
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	}
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	public resolve(value: T): void {
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		this.resolveInternal(value);
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	}
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	public reject(reason: unknown): void {
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		this.rejectInternal(reason);
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	}
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}
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