code: def true_color_string(self):
      attrs = []
      if self.fg:
          attrs.extend(
              (
                  "38",
                  "2",
                  str(self.fg[0]),
                  str(self.fg[1]),
                  str(self.fg[2]),
              )
          )
      if self.bg:
          attrs.extend(
              (
                  "48",
                  "2",
                  str(self.bg[0]),
                  str(self.bg[1]),
                  str(self.bg[2]),
              )
          )
      if self.bold:
          attrs.append("01")
      if self.underline:
          attrs.append("04")
      return self.escape(attrs)
  
imports: import sys
  from pygments.formatter import Formatter
  from pygments.console import codes
  from pygments.style import ansicolors
label_desc: Use image node_id 4 for calling the EscapeSequence obj's underlying member method code with example usage: obj.true_color_string() and returns: self