code: function getSpliceNodeAtPos(context, pos, loc, value) {
    return createNode({
      start: pos,
      end: pos,
      loc: {start: loc, end: loc},
      __spliceValue: value,
    });
  }
docs: Creates a zero-width "node" with a value to splice at that position. WARNING: This is only safe to use when source maps are off!