Interface Proposal

interface Proposal {
    access_log?: string;
    approved?: DateContainer;
    approved_by?: number;
    created: DateContainer;
    created_by: number;
    customer_id: string;
    description?: string;
    expires?: DateContainer;
    id: string;
    name: string;
    notes?: string;
    number: string;
    projectid: string;
    responded?: DateContainer;
    response?: string;
    sent?: DateContainer;
    status: string;
    total?: number;
    viewed?: DateContainer;
}