text: """
  Operation mode helper for DHW.
  """
  from bosch_thermostat_client.const import AUTO, MANUAL, USED, VALUE, ON, OFF
  from .base import OperationModeHelper
  
  
  class NefitDhwOperationModeHelper(OperationModeHelper):
      @property
      def available_modes(self):
          """Get Bosch operations modes."""
          return ["clock", "manual"]
  
      @property
      def mode_type(self):
          """Check if operation mode type is manual or auto."""
          if self._operation_mode.get(USED, True) != "false":
              return super().mode_type
          return MANUAL
  
      @property
      def current_mode(self):
          """Retrieve current mode of Circuit."""
          if self._operation_mode.get(VALUE, OFF) == ON:
              return MANUAL
          return AUTO
  