def multipart_content_type_headers(boundary, subtype='mixed'):
    """Creates a MIME multipart header with the given configuration.

	Returns a dict containing a MIME multipart header with the given
	boundary.

	.. code-block:: python

		>>> multipart_content_type_headers('8K5rNKlLQVyreRNncxOTeg')
		{'Content-Type': 'multipart/mixed; boundary="8K5rNKlLQVyreRNncxOTeg"'}

		>>> multipart_content_type_headers('8K5rNKlLQVyreRNncxOTeg', 'alt')
		{'Content-Type': 'multipart/alt; boundary="8K5rNKlLQVyreRNncxOTeg"'}

	Parameters
	----------
	boundary : str
		The content delimiter to put into the header
	subtype : str
		The subtype in :mimetype:`multipart/*`-domain to put into the header
	"""
    ctype = 'multipart/%s; boundary="%s"' % (subtype, boundary)
    return {'Content-Type': ctype}
