With ArcGIS Pro, I am creating a customized geoprocessing tool with python script and the PostgreSQL database connection is required. I could set four parameters to input string for “host”, “username”, “password”, and “database”. But I notice that there is a parameter data type “database connection” and seems I need to input a file path for it. I am not sure what kind of file it is expecting, should I input the file, which contains the connection string?