code: def toXML(self, writer, ttFont):
      numPalettes = len(self.palettes)
      paletteLabels = {
          i: nameID for (i, nameID) in enumerate(self.paletteLabels)
      }
      paletteTypes = {
          i: typ for (i, typ) in enumerate(self.paletteTypes)
      }
      writer.simpletag("version", value=self.version)
      writer.newline()
      writer.simpletag(
          "numPaletteEntries", value=self.numPaletteEntries
      )
      writer.newline()
      for index, palette in enumerate(self.palettes):
          attrs = {"index": index}
          paletteType = paletteTypes.get(
              index, self.DEFAULT_PALETTE_TYPE
          )
          paletteLabel = paletteLabels.get(index, self.NO_NAME_ID)
          if self.version > 0 and paletteLabel != self.NO_NAME_ID:
              attrs["label"] = paletteLabel
          if (
              self.version > 0
              and paletteType != self.DEFAULT_PALETTE_TYPE
          ):
              attrs["type"] = paletteType
          writer.begintag("palette", **attrs)
          writer.newline()
          if (
              self.version > 0
              and paletteLabel != self.NO_NAME_ID
              and ttFont
              and "name" in ttFont
          ):
              name = ttFont["name"].getDebugName(paletteLabel)
              if name is not None:
                  writer.comment(name)
                  writer.newline()
          assert len(palette) == self.numPaletteEntries
          for cindex, color in enumerate(palette):
              color.toXML(writer, ttFont, cindex)
          writer.endtag("palette")
          writer.newline()
      if self.version > 0 and not all(
          l == self.NO_NAME_ID for l in self.paletteEntryLabels
      ):
          writer.begintag("paletteEntryLabels")
          writer.newline()
          for index, label in enumerate(self.paletteEntryLabels):
              if label != self.NO_NAME_ID:
                  writer.simpletag("label", index=index, value=label)
                  if (
                      self.version > 0
                      and label
                      and ttFont
                      and "name" in ttFont
                  ):
                      name = ttFont["name"].getDebugName(label)
                      if name is not None:
                          writer.comment(name)
                  writer.newline()
          writer.endtag("paletteEntryLabels")
          writer.newline()
  
imports: from fontTools.misc.textTools import bytesjoin, safeEval
  from .None import DefaultTable
  import array
  from collections import namedtuple
  import struct
  import sys
label_desc: Use image node_id 11 for calling the table_C_P_A_L_ obj's underlying member method code with example usage: obj.toXML(writer, ttFont) without return types