Cant find documentation for uploading data file containing items to Product Hub.

Summary:

Cant find documentation for uploading data file containing items to Product Hub.

We need the configuration for how to upload a data file using API.

The documentation provided (link: https://docs.oracle.com/en/cloud/saas/supply-chain-and-manufacturing/24c/fasrp/op-itembatches-action-uploadfile-post.html) does not contain what we are looking for.
we need information about how we can upload our file, so we can access it using the file data path.

How do I find the URL to an endpoint and documentation.