Function MapSize

MapSize(size, options?): PropertyDecorator
Checks if the given value is a Map with a size of exactly size.

Example
```
// Ensure the map has exactly 5 entries.
@MapSize(5)
values: Map<string, string>
```
Parameters
- size: number
  The allowed size of the map.
- Optional options: ValidationOptions
  Generic class-validator options.
Returns PropertyDecorator
- Defined in src/map/map-size/map-size.decorator.ts:24