code: def disable_pow_check(chain_class: Type[BaseChain]) -> Type[BaseChain]:
      
      if not chain_class.vm_configuration:
          raise ValidationError("Chain class has no vm_configuration")
  
      if issubclass(chain_class, NoChainSealValidationMixin):
          # Seal validation already disabled, hence nothing to change
          chain_class_without_seal_validation = chain_class
      else:
          chain_class_without_seal_validation = type(
              chain_class.__name__,
              (chain_class, NoChainSealValidationMixin),
              {},
          )
      return chain_class_without_seal_validation.configure(  # type: ignore
          vm_configuration=_mix_in_disable_seal_validation(
              chain_class_without_seal_validation.vm_configuration  # type: ignore
          ),
      )
docs: Disable the proof of work validation check for each of the chain's vms.
      This allows for block mining without generation of the proof of work seal.
  
      .. note::
  
          blocks mined this way will not be importable on any chain that does not
          have proof of work disabled.