code: def peek_64(library, session, address):
      
      value_64 = ViUInt64()
      ret = library.viPeek64(session, address, byref(value_64))
      return value_64.value, ret
docs: Read an 64-bit value from the specified address.
  
      Corresponds to viPeek64 function of the VISA library.
  
      :param library: the visa library wrapped by ctypes.
      :param session: Unique logical identifier to a session.
      :param address: Source address to read the value.
      :return: Data read from bus, return value of the library call.
      :rtype: bytes, :class:`pyvisa.constants.StatusCode`