how to use the isprototypeof function from the fs-extra library in typescript

The isPrototypeOf function in the fs-extra library is used to check if an object is from a specific prototype. Here's how you can use it in TypeScript:

index.ts
import fs from 'fs-extra';

interface MyCustomObject {
  prop1: string;
  prop2: number;
}

const myCustomObject: MyCustomObject = { prop1: 'hello', prop2: 42 };

if (fs.isPrototypeOf(myCustomObject)) {
  // This code block will not be executed because `myCustomObject` is not an instance of `fs`
}

if (Object.prototype.isPrototypeOf(myCustomObject)) {
  // This code block will be executed because `myCustomObject` is an instance of `Object`
}

if (MyCustomObject.prototype.isPrototypeOf(myCustomObject)) {
  // This code block will be executed because `myCustomObject` is an instance of `MyCustomObject`
}
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Note that in the if statements, we are using the isPrototypeOf function on different objects. The first if statement checks if myCustomObject is an instance of fs, which is not possible since fs is a module and not a class or object. The second if statement checks if myCustomObject is an instance of the Object class, which it is, since all objects are instances of Object. The third if statement checks if myCustomObject is an instance of MyCustomObject, which it is, since we defined it to be an instance of that interface at the beginning of the code.