docs: def read_value(hive, key, vname=None, use_32bit_registry=False):
      r'''
      Reads a registry value entry or the default value for a key. To read the
      default value, don't pass ``vname``
  
      Args:
  
          hive (str): The name of the hive. Can be one of the following:
  
              - HKEY_LOCAL_MACHINE or HKLM
              - HKEY_CURRENT_USER or HKCU
              - HKEY_USER or HKU
              - HKEY_CLASSES_ROOT or HKCR
              - HKEY_CURRENT_CONFIG or HKCC
  
          key (str):
              The key (looks like a path) to the value name.
  
          vname (str):
              The value name. These are the individual name/data pairs under the
              key. If not passed, the key (Default) value will be returned.
  
          use_32bit_registry (bool):
              Accesses the 32bit portion of the registry on 64bit installations.
              On 32bit machines this is ignored.
  
      Returns:
          dict: A dictionary containing the passed settings as well as the
          value_data if successful. If unsuccessful, sets success to False.
  
          bool: Returns False if the key is not found
  
          If vname is not passed:
  
              - Returns the first unnamed value (Default) as a string.
              - Returns none if first unnamed value is empty.
  
      CLI Example:
  
          The following will get the value of the ``version`` value name in the
          ``HKEY_LOCAL_MACHINE\\SOFTWARE\\Salt`` key
  
          .. code-block:: bash
  
              salt '*' reg.read_value HKEY_LOCAL_MACHINE 'SOFTWARE\Salt' 'version'
  
      CLI Example:
  
          The following will get the default value of the
          ``HKEY_LOCAL_MACHINE\\SOFTWARE\\Salt`` key
  
          .. code-block:: bash
  
              salt '*' reg.read_value HKEY_LOCAL_MACHINE 'SOFTWARE\Salt'
      '''
      return __utils__['reg.read_value'](hive=hive,
                                         key=key,
                                         vname=vname,
                                         use_32bit_registry=use_32bit_registry)