def process_bind_param(self, value, dialect):
     """Compress data in column."""
     if value is not None:
         value = ZlibMarshal.dumps(self.force_type(value))
         return value
     return value
 def process_bind_param(self, value, dialect):
     """Compress data in column."""
     if value is not None:
         value = ZlibMarshal.dumps(self.force_type(value))
         return value
     return value