code: def _get_cpu_count():
      """Gets the number of physical cores in this machine.
  
      Returns:
        int >= 1 if the call to get the cpu_count succeeded, or 0 if not.
      """
      return psutil.cpu_count(logical=False) or 0
  
file_path: deepvariant/deepvariant/resources.py
imports: import platform
  import resource
  import time
  import psutil
  from deepvariant.protos import resources_pb2
label_desc: Use image node_id 2 for calling a global function with example usage: _get_cpu_count() and returns: unknown