Function checker

checker(
    properties?: SubstrateAddCallbackProperties<SubstrateChecker>,
): <Type extends object>(
    value: (this: Type, ...args: any[]) => any,
    context: ClassMethodDecoratorContext<Type>,
) => any
Function
Parameters
- Optionalproperties: SubstrateAddCallbackProperties<SubstrateChecker>
Returns <Type extends object>(
value: (this: Type, ...args: any[]) => any,
context: ClassMethodDecoratorContext<Type>,
) => any
Decorator
checker

Description
Stage-3 decorator that turns methods into substrate checkers.
Example
```
@checker private constrainPosition(properties: SubstrateSolverProperties) {...}
```
Is equivalent to:
```
private constrainPosition(properties: SubstrateSolverProperties) {...}

public initialize() {
  ...
  $(this).addChecker(this.constrainPosition);
}
```
- Defined in src/decorators/substrate.ts:67