/**
 * GmailConnector — polls Gmail via the gws CLI tool.
 * Uses child_process.execSync to call gws CLI commands.
 * Skips "Using keyring backend:" prefix lines before parsing JSON.
 */
import type { AuthRequirement, ConnectorConfig, ConnectorHealth, IConnector, NormalizedItem } from '../framework/types.js';
export declare class GmailConnector implements IConnector {
    readonly name = "gmail";
    readonly type: "api";
    private lastPollTime;
    private lastPollCount;
    private lastError;
    constructor(_config: ConnectorConfig);
    init(): Promise<void>;
    dispose(): Promise<void>;
    healthCheck(): Promise<ConnectorHealth>;
    getAuthRequirements(): AuthRequirement[];
    authenticate(): Promise<boolean>;
    private getHeader;
    poll(since: Date): Promise<NormalizedItem[]>;
}
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