       logging:         format:           timestamp: (( ..cf.properties.diego_log_timestamp_format.selected_option.parsed_manifest(timestamp_format) ))       loggregator:         ca_cert: (( $ops_manager.ca_certificate ))         cert: (( .properties.loggregator_client_cert.cert_pem ))         key: (( .properties.loggregator_client_cert.private_key_pem ))       