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# holoscan::ParameterFlag

> Enum class to define the type of a parameter.

Enum class to define the type of a parameter.

```cpp showLineNumbers={false}
enum class holoscan::ParameterFlag
```

The parameter flag can be used to control the behavior of the parameter.

---

## Values

### kNone

The parameter is mandatory and static. It cannot be changed at runtime.

### kOptional

The parameter is optional and might not be available at runtime.

Use `Parameter::try_get()` to get the value.

### kDynamic

The parameter is dynamic and might change at runtime.