code: def check_hypervisor_stats(compute_client, nodes=1, memory=0, vcpu=0):
      
  
      statistics = compute_client.hypervisors.statistics().to_dict()
  
      if all([statistics['count'] >= nodes,
              statistics['memory_mb'] >= memory,
              statistics['vcpus'] >= vcpu]):
          return statistics
      else:
          return None
docs: Check the Hypervisor stats meet a minimum value
  
      Check the hypervisor stats match the required counts. This is an
      implementation of a command in TripleO with the same name.
  
      :param compute_client: Instance of Nova client
      :type  compute_client: novaclient.client.v2.Client
  
      :param nodes: The number of nodes to wait for, defaults to 1.
      :type  nodes: int
  
      :param memory: The amount of memory to wait for in MB, defaults to 0.
      :type  memory: int
  
      :param vcpu: The number of vcpus to wait for, defaults to 0.
      :type  vcpu: int