/**
 * Z.AI Provider Implementation
 *
 * Z.AI (GLM models) uses an Anthropic-compatible API format via the GLM Coding Plan.
 * This provider extends AnthropicProvider with the correct Z.AI endpoint.
 *
 * Endpoint: https://api.z.ai/api/anthropic (Anthropic-compatible, uses Coding Plan quota)
 * Auth: Authorization: Bearer header (same token format as ANTHROPIC_AUTH_TOKEN)
 */
import { AnthropicProvider } from './anthropic.js';
import type { ProviderConfig } from './types.js';
/**
 * Z.AI (GLM) API provider adapter.
 *
 * Uses Anthropic-compatible API format via Z.AI's Coding Plan endpoint.
 * Default base URL: https://api.z.ai/api/anthropic
 */
export declare class ZAIProvider extends AnthropicProvider {
    readonly name: string;
    constructor(config: ProviderConfig);
    /**
     * Build headers for Z.AI's Anthropic-compatible endpoint.
     * Z.AI accepts Authorization: Bearer (like ANTHROPIC_AUTH_TOKEN)
     * instead of x-api-key.
     */
    protected buildHeaders(): Record<string, string>;
    /**
     * Check if the provider is available and configured correctly.
     * Uses a minimal Anthropic-format message to the Z.AI endpoint.
     */
    healthCheck(): Promise<void>;
}
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