import { IntegrationResult, IntegrationStrategy } from '../integration.strategy';
export declare class SendGridApiStrategy implements IntegrationStrategy {
    sendMessage(to: string, message: string, config: any): Promise<IntegrationResult>;
    validateConfig(config: any): boolean;
    getVerifiedSenders(apiKey: string): Promise<{
        success: boolean;
        data?: Array<{
            label: string;
            value: string;
        }>;
        error?: string;
    }>;
    getTemplates(config: any): Promise<{
        success: boolean;
        data?: Array<{
            label: string;
            value: string;
        }>;
        error?: string;
    }>;
    private convertAttachmentsToSendGridFormat;
}