ModelProp (epoxy-annotations 5.1.0 API)

```
@Target({METHOD,FIELD})
@Retention(CLASS)
public @interface ModelProp
```
Used in conjunction with ModelView to automatically generate EpoxyModels from custom views - https://github.com/airbnb/epoxy/wiki/Generating-Models-from-View-Annotations
This annotation should be used on setter methods within a custom view class. Setters annotated with this will have a corresponding field on the generated model.
Alternatively, if your setter has no side effects, you can use this annotation on a field to have Epoxy set that field directly and avoid the boiler plate of a setter.
For convenience you can use TextProp instead for props representing text.
Similarly you can use CallbackProp for props representing listeners or callbacks.
Alternatively, the options() parameter can be used to configure a prop.

Optional Element Summary

Optional Elements
Modifier and Type	Optional Element	Description
`java.lang.String`	`defaultValue`	The name of the constant field that should be used as the default value for this prop.
`java.lang.String`	`group`	Specify an optional group name.
`ModelProp.Option[]`	`options`	Specify any `ModelProp.Option` values that should be used when generating the model class.
`ModelProp.Option[]`	`value`	The same as `options()`, but this allows the shortcut of setting an option eg "@ModelProp(DoNotHash)".

- Element Detail
  - options
```
ModelProp.Option[] options
```
    Specify any ModelProp.Option values that should be used when generating the model class.
    
    Default:
    
    {}
- - value
```
ModelProp.Option[] value
```
    The same as options(), but this allows the shortcut of setting an option eg "@ModelProp(DoNotHash)".
    
    Default:
    
    {}
- - defaultValue
```
java.lang.String defaultValue
```
    The name of the constant field that should be used as the default value for this prop. The default value will be used if the prop value isn't set on the model.
    For example, you would define a constant in your view class like static final int DEFAULT_NUM_LINES = 3, and then set this parameter to "DEFAULT_NUM_LINES" so that the annotation processor knows what constant to reference.
    The name of the constant must be used instead of referencing the constant directly since objects are not valid annotation parameters.
    
    Default:
    
    ""
- - group
```
java.lang.String group
```
    Specify an optional group name. Multiple props with the same group name will only allow one of the props to be set on the view.
    https://github.com/airbnb/epoxy/wiki/Generating-Models-from-View-Annotations#prop-groups
    
    Default:
    
    ""