class_docstr: Parser for EvaDB QL based on Lark
code: def __new__(cls):
      if not hasattr(cls, "_instance"):
          cls._instance = super(LarkParser, cls).__new__(cls)
      return cls._instance
  
imports: import os
  from lark import Lark
  from evadb.parser.lark_visitor import LarkInterpreter
label_desc: Use image node_id 1 for calling the LarkParser obj's underlying member method code with example usage: obj.__new__(cls) and returns: cls