code: def sort_order(self, tree):
      token = tree.children[0]
      sort_order = None
  
      if str.upper(token) == "ASC":
          sort_order = ParserOrderBySortType.ASC
      elif str.upper(token) == "DESC":
          sort_order = ParserOrderBySortType.DESC
      return sort_order
  
file_path: evadb/evadb/parser/lark_visitor/_select_statement.py
imports: from lark.tree import Tree
  from evadb.expression.constant_value_expression import ConstantValueExpression
  from evadb.parser.types import ParserOrderBySortType
label_desc: Use image node_id 4 for calling the Select obj's underlying member method code with example usage: obj.sort_order(tree) and returns: sort_order