export declare type Email = EmailData | EmailData[];
export declare type EmailData = string | {
    name?: string;
    email: string;
};
export interface Personalization {
    to: Email;
    cc?: Email;
    bcc?: Email;
    subject?: string;
    headers?: {
        [key: string]: string;
    };
    substitutions?: {
        [key: string]: string;
    };
    dynamicTemplateData?: {
        [key: string]: any;
    };
    customArgs?: {
        [key: string]: string;
    };
    sendAt?: number;
}
