Function isInstance

src/utils/jrpc.ts:114–116

(value: unknown, symbol: symbol)

 * @returns Whether the value has `{ [symbol]: true }` in its prototype chain.
 */
export function isInstance(value: unknown, symbol: symbol): value is { [key: symbol]: true } {
  return isObject(value) && symbol in value && value[symbol] === true;
}

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