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import {countBy} from 'rambda'
const transformFn = (x: string) => x.toLowerCase()const list = ['a', 'A', 'b', 'B', 'c', 'C']
describe('R.countBy', () => {  it('happy', () => {    const result = countBy(transformFn, list)
    result // $ExpectType Record<string, number>  })  it('curried', () => {    const result = countBy(transformFn)(list)
    result // $ExpectType Record<string, number>  })})