code: def avail_sizes(call=None):
      '''
      Return a list of the image sizes that are on the provider
      '''
      if call == 'action':
          raise SaltCloudSystemExit(
              'The avail_sizes function must be called with '
              '-f or --function, or with the --list-sizes option'
          )
  
      params = {'Action': 'DescribeInstanceTypes'}
      items = query(params=params)
  
      ret = {}
      for image in items['InstanceTypes']['InstanceType']:
          ret[image['InstanceTypeId']] = {}
          for item in image:
              ret[image['InstanceTypeId']][item] = six.text_type(image[item])
  
      return ref avail_sizes(call=None):
      '''
      Return a list of the image sizes that are on the provider
      '''
      if call == 'action':
          raise SaltCloudSystemExit(
              'The avail_sizes function must be called with '
              '-f or --function, or with the --list-sizes option'
          )
  
      params = {'Action': 'DescribeInstanceTypes'}
      items = query(params=params)
  
      ret = {}
      for image in items['InstanceTypes']['InstanceType']:
          ret[image['InstanceTypeId']] = {}
          for item in image:
              ret[image['InstanceTypeId']][item] = six.text_type(image[item])
  
      return ret
docs: Return a list of the image sizes that are on the provider