export declare class ChatCompletionResponseUsage {
    'promptTokens'?: number;
    'completionTokens'?: number;
    'totalTokens'?: number;
    static readonly discriminator: string | undefined;
    static readonly attributeTypeMap: Array<{
        name: string;
        baseName: string;
        type: string;
        format: string;
    }>;
    static getAttributeTypeMap(): {
        name: string;
        baseName: string;
        type: string;
        format: string;
    }[];
    constructor();
}