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!

In reply to Net::Twitter update_profile_image by Anonymous Monk

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