remove(id: string): boolean return this.items.delete(id);
interface HeartoItem id: string; name: string; type?: string;
listAll(): HeartoItem[] return Array.from(this.items.values());
class HeartoCollection undefined return this.items.get(id);
remove(id: string): boolean return this.items.delete(id);
interface HeartoItem id: string; name: string; type?: string; hearto_1g1r_collection
listAll(): HeartoItem[] return Array.from(this.items.values()); remove(id: string): boolean return this
class HeartoCollection undefined return this.items.get(id); remove(id: string): boolean return this.items.delete(id)