Net::Twitter has a method called update_profile_image:

update_profile_image

update_profile_image(image)

    Parameters: image
    Required: image

    Updates the authenticating user's profile image. Expects raw multi
+part data, not a URL to an image.

    Returns: ExtendedUser
[download]

The part that confuses me is this: "Expects raw multipart data, not a URL to an image."

Using Perl, how might one generate raw multipart data from a file and place in a scalar? What CPAN module would I use?

Thanks in advance for all your help!