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import {modifyPath} from 'rambda'
const obj = {a: {b: {c: 1}}}
describe('R.modifyPath', () => {  it('happy', () => {    const result = modifyPath('a.b.c', (x: number) => x + 1, obj)    result // $ExpectType Record<string, unknown>  })  it('explicit return type', () => {    interface Foo extends Record<string, unknown> {      a: 1,    }    const result = modifyPath<Foo>('a.b.c', (x: number) => x + 1, obj)    result // $ExpectType Foo  })})