class_docstr: Base class for all Statements
  
  Attributes
  ----------
  stmt_type : StatementType
      the type of this statement - Select or Insert etc
code: def __hash__(self) -> int:
      return hash(self.stmt_type)
  
imports: from copy import deepcopy
  from evadb.parser.types import StatementType
label_desc: Use image node_id 3 for calling the AbstractStatement obj's underlying member method code with example usage: obj.__hash__() and returns: hash