Nice! But i got confused. This new chunking_strategy parameter is used with client.beta.vector_stores.files.create() and requires a file_id. So, before that, we have to upload a file using client.files.create() right? My confusion is that I believed that the chunking was done right when we uploaded the file, using this files.create() but to be done with vector_stores.files.create() it reveals that the first part do not chunk it… is that right?