code: def avail_sizes(call=None):
      '''
      Return a list of sizes available from the provider
      '''
      if call == 'action':
          raise SaltCloudSystemExit(
              'The avail_sizes function must be called with '
              '-f or --function, or with the --list-sizes option'
          )
  
      compconn = get_conn(client_type='compute')
  
      ret = {}
      location = get_location()
  
      try:
          sizes = compconn.virtual_machine_sizes.list(
              location=location
          )
          for size_obj in sizes:
              size = size_obj.as_dict()
              ret[size['name']] = size
      except CloudError as exc:
          __utils__['azurearm.log_cloud_error']('compute', exc.message)
          ret = {'Error': exc.message}
  
      return ref avail_sizes(call=None):
      '''
      Return a list of sizes available from the provider
      '''
      if call == 'action':
          raise SaltCloudSystemExit(
              'The avail_sizes function must be called with '
              '-f or --function, or with the --list-sizes option'
          )
  
      compconn = get_conn(client_type='compute')
  
      ret = {}
      location = get_location()
  
      try:
          sizes = compconn.virtual_machine_sizes.list(
              location=location
          )
          for size_obj in sizes:
              size = size_obj.as_dict()
              ret[size['name']] = size
      except CloudError as exc:
          __utils__['azurearm.log_cloud_error']('compute', exc.message)
          ret = {'Error': exc.message}
  
      return ret
docs: Return a list of sizes available from the provider