To override the execute_import method and use the import_result in your inherited method, you need to ensure that you correctly call the super method and then perform your additional logic using the import_result returned by the super method.

Here's how you can achieve that:

class Import(models.TransientModel):
    _inherit = 'base_import.import'

    def execute_import(self, fields, columns, options, dryrun=False):
        # Call the super method and store the result
        import_result = super(Import, self).execute_import(fields, columns, options, dryrun)
        
        # Perform your custom logic with the import_result
        if 'ids' in import_result:
            result_ids = import_result['ids']
            # Your custom logic using result_ids
            # For example, log the imported IDs
            _logger.info(f"Imported IDs: {result_ids}")
        
        # Return the result of the import
        return import_result