+ test_params - specifies a string with a list of vsperf configuration
+ parameters, which will be passed to the '--test-params' CLI argument;
+ Parameters should be stated in the form of 'param=value' and separated
+ by a semicolon. Please check VSPERF documentation for details about
+ available configuration parameters and their data types.
+ In case that both 'test_params' and 'conf_file' are specified,
+ then values from 'test_params' will override values defined
+ in the configuration file.
+ type: string
+ default: NA
+ conf_file - path to the vsperf configuration file, which will be uploaded
+ to the VM;
+ In case that both 'test_params' and 'conf_file' are specified,
+ then values from 'test_params' will override values defined
+ in configuration file.