code: def __str__(self) -> str:
      print_str = "EXPLAIN {}".format(str(self._explainable_stmt))
      return print_str
  
file_path: evadb/evadb/parser/explain_statement.py
imports: from evadb.parser.statement import AbstractStatement
  from evadb.parser.types import StatementType
label_desc: Use image node_id 2 for calling the ExplainStatement obj's underlying member method code with example usage: obj.__str__() and returns: print_str