code: def process_bind_param(
      self, value: Optional[datetime.datetime], dialect: Dialect
  ) -> Optional[int]:
      if value is None:
          return None
      else:
          return int(value.timestamp())
  
imports: import datetime
  from typing import Optional
  from sqlalchemy.engine.interfaces import Dialect
  from sqlalchemy.types import Integer, TypeDecorator
label_desc: Use image node_id 1 for calling the IntTimestamp obj's underlying member method code with example usage: obj.process_bind_param(value, dialect) and returns: None, int