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rd } n Xd j | j � } | d k r6| d j | � 7} n t j | � t | | j | d d � � n Wd | j! � Xd S( s� Upload a file to the given URL using HTTP PUT with chunked streaming.
Note: The standard library urllib doesn't support PUT with data
We need to use httplib directly for this
This function uses streaming upload to support large files up to 1GB
without loading the entire file into memory.
:param file_path: Path to the file to upload
:param upload_url: Full URL to upload the file to. Query params are ignored.
:param auth_string: Optional authentication string for Basic Auth
:return: None if upload succeeded
:raises HTTPError: If upload fails with HTTP status >= 400
:raises ValueError: If URL is invalid
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