code: def create_image(cloud, **kwargs):
      
      if cloud == 'ec2':
          return create_ami(**kwargs)
  
      if cloud == 'rackspace':
          return create_rackspace_image(**kwargs)
  
      if cloud == 'gce':
          return create_gce_image(**kwargs)
docs: proxy call for ec2, rackspace create ami backend functions