```
Notice that `Vehicle.Cabin.Infotainment.Media.Volume` is the VSS signal that whose specification we want to define. The `default_value` is the default value of the signal to use if the user doesn't specify a value in their command. The `default_change_factor` is the default change factor of the signal, i.e the value to increment or decrement the current value with if user didn't specify any specific change factor. The `actions` object defines the actions that can be performed on the signal, currently, only "increase", "decrease", and "set" are supported. The `values` object defines the range of values that can be mapped onto the signal. The `value_set_intents` object defines the intent (or the `slot` to be more precise) that contains the specific value of the signal defined by the user in their command. Here `numeric_value` is the slot that contains the value of the signal as defined during the training of the intent engine. The `datatype` is the type of the value, i.e. `number`, `string`, `boolean`, etc. The `unit` is the unit of the value, i.e. `percent`, `degree`, `celsius`, etc.
```
Notice that `Vehicle.Cabin.Infotainment.Media.Volume` is the VSS signal that whose specification we want to define. The `default_value` is the default value of the signal to use if the user doesn't specify a value in their command. The `default_change_factor` is the default change factor of the signal, i.e the value to increment or decrement the current value with if user didn't specify any specific change factor. The `actions` object defines the actions that can be performed on the signal, currently, only "increase", "decrease", and "set" are supported. The `values` object defines the range of values that can be mapped onto the signal. The `value_set_intents` object defines the intent (or the `slot` to be more precise) that contains the specific value of the signal defined by the user in their command. Here `numeric_value` is the slot that contains the value of the signal as defined during the training of the intent engine. The `datatype` is the type of the value, i.e. `number`, `string`, `boolean`, etc. The `unit` is the unit of the value, i.e. `percent`, `degree`, `celsius`, etc.