code: def actual_cost_per_hour(
      self, resource_rates: Dict[str, float]
  ) -> float:
      cpu_in_mcpu = self.cores * 1000
      memory_in_bytes = cores_mcpu_to_memory_bytes(
          self.cloud, cpu_in_mcpu, self.worker_type()
      )
      storage_in_gb = 0  # we don't need to account for external storage
      resources = self.quantified_resources(
          cpu_in_mcpu, memory_in_bytes, storage_in_gb
      )
      resources = [
          r for r in resources if "service-fee" not in r["name"]
      ]
      return InstanceConfig._cost_per_hour_from_resources(
          resource_rates, resources
      )
  
file_path: hail/batch/batch/instance_config.py
imports: import abc
  from typing import Dict, List, Sequence
  from .cloud.resource_utils import cores_mcpu_to_memory_bytes
  from .driver.billing_manager import ProductVersions
  from .resources import QuantifiedResource, Resource
label_desc: Use image node_id 10 for calling the InstanceConfig obj's underlying member method code with example usage: obj.actual_cost_per_hour(resource_rates) and returns: InstanceConfig