public int sizeOfIn(String expr, Map<String, Object> map) {
        return getMapHelper().sizeOfIn(expr, map);
    }
public int sizeOfIn ( String expr , Map < String , Object > map ) { return getMapHelper ( ) . sizeOfIn ( expr , map ) ; }
Determines size of either (Map or Collection) value in the map.
@param expr expression indicating which (possibly nested) value in the map to determine size of.
@param map map to find value in.
@return size of value.
@throws SlimFixtureException if the value found is not a Map or Collection.