Looking into the code, I found that ensure* methods only verify if the destination path exist and not if the path is of the right * type. IMHO an error should be thrown if path is of the wrong type. Perhaps fs.stat instead of fs.access should suffice...

I had same problem with #22 .

resetInitialPos
Returns to the initial position of the element, before it is mounted.

I only need to initialize the position at the beginning.
And I thought it only works at the beginning until I update my component...

May you add a reminder to the document ?
It should make it unnecessary to waste time debugging code

It is Result<u32>, not Result<()>, but the documentation does not tell what that number (u32) means.