There is a command group 'az_iot_product_test'. This group of commands could 'manage device tests for product certification'. The group of commands has global parameter '--debug' which means 'Increase logging verbosity to show all debug logs.'. The group of commands has global parameter '--help -h' which means 'Show this help message and exit.'. The group of commands has global parameter '--only-show-errors' which means 'Only show errors, suppressing warnings.'. The group of commands has global parameter '--output -o' which means 'Output format.'. The group of commands has global parameter '--query' which means 'JMESPath query string. See <a href="http://jmespath.org/">http://jmespath.org/</a> for more information and examples.'. The group of commands has global parameter '--subscription' which means 'Name or ID of subscription. You can configure the default subscription using `az account set -s NAME_OR_ID`.'. The group of commands has global parameter '--verbose' which means 'Increase logging verbosity. Use --debug for full debug logs.'. This group contains a child command 'az_iot_product_test_search'.The syntax is: az iot product test search [--base-url]
                           [--certificate-name]
                           [--product-id]
                           [--registration-id]. The 1th example of the child command would be to use it to 'search by product id', the syntax is: az iot product test search --product-id {product_id}. The 2th example of the child command would be to use it to 'search by dps registration', the syntax is: az iot product test search --registration-id {registration_id}. The 3th example of the child command would be to use it to 'search by x509 certifcate common name  cn', the syntax is: az iot product test search --certificate-name {certificate_name}. The 4th example of the child command would be to use it to 'search by multiple values', the syntax is: az iot product test search --product-id {product_id} --certificate-name {certificate_name}. The parameter '--base-url' is optional. override certification service url to allow testing in non-production environements.. The parameter '--certificate-name --cn' is optional. the x509 certificate common name (cn) used for device provisioning service attestation.. The parameter '--product-id -p' is optional. the submitted product id.. The parameter '--registration-id -r' is optional. the regstration id for device provisioning service.. 