code: def __hash__(self) -> int:
      return hash(
          (
              super().__hash__(),
              self.name,
              self.if_not_exists,
              self.table_ref,
              tuple(self.col_list),
              self.vector_store_type,
              tuple(self.project_expr_list),
              self.index_def,
          )
      )
  
file_path: evadb/evadb/plan_nodes/create_index_plan.py
imports: from typing import List
  from evadb.catalog.catalog_type import VectorStoreType
  from evadb.expression.abstract_expression import AbstractExpression
  from evadb.expression.function_expression import FunctionExpression
  from evadb.parser.create_statement import ColumnDefinition
  from evadb.parser.table_ref import TableRef
  from evadb.plan_nodes.abstract_plan import AbstractPlan
  from evadb.plan_nodes.types import PlanOprType
label_desc: Use image node_id 10 for calling the CreateIndexPlan obj's underlying member method code with example usage: obj.__hash__() and returns: hash