Error "Could not find a declaration file for module" in TypeScript — how to fix?

Hello! I am a beginner TypeScript developer and encountered a problem when importing a third-party module. I have a simple Express.js project written in TypeScript. I installed the `lodash` package via npm, but when I try to import it in my `index.ts` file, the compiler throws an error. Here is my code: ```typescript import _ from 'lodash'; const arr = [1, 2, 3, 4, 5]; const shuffled = _.shuffle(arr); console.log(shuffled); ``` When running `tsc`, I get: ``` Could not find a declaration file for module 'lodash'. '/path/to/node_modules/lodash/lodash.js' implicitly has an 'any' type. Try `npm i --save-dev @types/lodash` if it exists or add a new declaration (.d.ts) file containing `declare module 'lodash';` ``` I understand that TypeScript requires declaration files (`.d.ts`) for third-party modules, but I don't fully understand how this works. Why do some modules work without additional actions, while others do not? And what does "implicitly has an 'any' type" mean?