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import {Dictionary, filter} from 'rambda'
function dropEmpty<T>(input: T[] | Dictionary<T>) {  if (input instanceof Array) {    // <-- this check is necessary to calm down the TS compiler ... @_@    return filter<T>(Boolean, input) // <-- notice the same  } else {    return filter<T>(Boolean, input) // <-- code...  }  // return filter<T>(Boolean, input)}
describe('R.dropEmpty', () => {  it('happy', () => {    const list = [1, 2, 3, '']    const result: any = dropEmpty(list)
    result // $ExpectType any  })})