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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def raw_encode(data):
 """Special case serializer."""

    content_type = 'application/data'
    payload = data
    if isinstance(payload, unicode):
        content_encoding = 'utf-8'
        payload = payload.encode(content_encoding)
    else:
        content_encoding = 'binary'
    return content_type, content_encoding, payload