I have an interface, which should have keys that are in specific enum key type, but when I declare the type it gives this error:

A mapped type may not declare properties or methods.

Here is the code:

enum myEnum {

  propOne = 'propOne',

  propTwo = 'propTwo'

}



export interface myInterface {

  [key in myEnum]: anotherInterface;

}

I tried to specify the type also like this, but it didn't work and gave me syntax error:

export interface myInterface {

  [key in keyof typeof myEnum]: anotherInterface;

}

I also tried to use a normal object instead of an enum, but it gave the same error.