code: def _validate_value(self, actual_value: Any) -> bool:
      if not isinstance(actual_value, str):
          return False
  
      path_to_plot_pattern = (
          r"^(\/[\w.-]+)+(/[\w.-]+)*$|^[^\s/]+(/[\w.-]+)*$"
      )
      return bool(re.match(path_to_plot_pattern, actual_value))
  
imports: import re
  from decimal import Decimal
  from abc import abstractmethod, ABC
  from typing import Any, Iterable
  from ..df_info import df_type
label_desc: Use image node_id 3 for calling the PlotOutputType obj's underlying member method code with example usage: obj._validate_value(actual_value) and returns: bool, False