code: def restart(self, num_instructions=0, skip_breakpoints=False):
          
          if not util.is_natural(num_instructions):
              raise ValueError('Invalid instruction count: %s.' % num_instructions)
  
          if not self.halted():
              return False
  
          flags = 0
          if skip_breakpoints:
              flags = flags | enums.JLinkFlags.GO_OVERSTEP_BP
  
          self._dll.JLINKARM_GoEx(num_instructions, flags)
  
          return True
docs: Restarts the CPU core and simulates/emulates instructions.
  
          Note:
            This is a no-op if the CPU isn't halted.
  
          Args:
            self (JLink): the ``JLink`` instance
            num_instructions (int): number of instructions to simulate, defaults
              to zero
            skip_breakpoints (bool): skip current breakpoint (default: ``False``)
  
          Returns:
            ``True`` if device was restarted, otherwise ``False``.
  
          Raises:
            ValueError: if instruction count is not a natural number.