I am using an external library pg-mem which exposes LibAdapters and it has a method createTypeormConnection which accepts few arguments but of type any.
export interface LibAdapters {
createTypeormConnection(typeOrmConnection: any, queryLatency?: number): any;
}
I want to specify the exact type of these arguments as I am getting a lot of lint errors:
Unsafe return of an `any` typed value.eslint@typescript-eslint/no-unsafe-return
How can I specify the types of the arguments & return type of the method?
You can extend exisiting types by using declaration merging:
declare module "pg-mem" {
interface LibAdapters {
createTypeormConnection(typeOrmConnection: SomeType, queryLatency?: number): SomeOtherType
}
}
Note, that this will add overload of createTypeormConnection instead of overriding it, so if you call createTypeormConnection with value of type other than SomeType, you will still get any.