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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 connect_to_rackspace(region, access_key_id, secret_access_key):
 """ returns a connection object to Rackspace """

    pyrax.set_setting('identity_type', 'rackspace')
    pyrax.set_default_region(region)
    pyrax.set_credentials(access_key_id, secret_access_key)
    nova = pyrax.connect_to_cloudservers(region=region)
    return nova