code: def scale_in(self, blocks=0, machines=0, strategy=None):
          ''' Scale in resources
          '''
          count = 0
          instances = self.client.servers.list()
          for instance in instances[0:machines]:
              print("Deleting : ", instance)
              instance.delete()
              count += 1
  
          return counf scale_in(self, blocks=0, machines=0, strategy=None):
          ''' Scale in resources
          '''
          count = 0
          instances = self.client.servers.list()
          for instance in instances[0:machines]:
              print("Deleting : ", instance)
              instance.delete()
              count += 1
  
          return count
docs: Scale in resources