I tried to import my test module installing with npm i github.com/.../... and the codes, it's working properly, but in VSCode it has something like this:

Could not find a declaration file for module 'estrajs'. 'C:/Users/Users/Desktop/Test/TestFolder/node_modules/mymodule/index.js' implicitly has an 'any' type.
  Try `npm i --save-dev @types/mymodule` if it exists or add a new declaration (.d.ts) file containing `declare module 'mymodule';`ts(7016)

How do I make the declaration of it? I already make file on typings/index.d.ts