code: def get_physical_memory():
      """Get the physical memory in GBs.
  
      Returns:
          float: Physical memory in GBs.
      """
      return psutil.virtual_memory()[0] / 1073741824
  
imports: import os
  import psutil
label_desc: Use image node_id 2 for calling a global function with example usage: get_physical_memory() and returns: unknown