/**
 * GraphQL integration client base class.
 *
 * Provides the foundation for GraphQL integration clients with query() and mutation() methods.
 * Handles proto message construction and response validation.
 */
import { z } from "zod";
import type { QueryExecutor, TraceMetadata } from "../registry.js";
import type { IntegrationConfig, IntegrationClientImpl } from "../types.js";
/**
 * Base class for GraphQL integration clients.
 *
 * This class handles:
 * - Building graphql.v1.Plugin proto messages
 * - Executing queries and mutations through the orchestrator
 * - Required Zod schema validation on full GraphQL response
 * - Variables serialization for parameterized queries
 * - Optional per-request HTTP headers (in addition to any headers configured
 *   on the integration)
 */
export declare abstract class GraphQLIntegrationClient implements IntegrationClientImpl {
    readonly name: string;
    readonly pluginId: string;
    readonly config: IntegrationConfig;
    private executeQuery;
    constructor(config: IntegrationConfig, executeQuery: QueryExecutor);
    /**
     * Execute a GraphQL query.
     *
     * @param query - GraphQL query string
     * @param schema - Zod schema for full response validation (REQUIRED)
     * @param variables - Optional variables for the query
     * @param metadata - Optional trace metadata for observability
     * @param headers - Optional HTTP headers to send with the request
     * @returns Validated query result
     */
    query<TResponse>(query: string, schema: {
        response: z.ZodSchema<TResponse>;
    }, variables?: Record<string, unknown>, metadata?: TraceMetadata, headers?: Record<string, string>): Promise<TResponse>;
    /**
     * Execute a GraphQL mutation.
     *
     * @param mutation - GraphQL mutation string
     * @param schema - Zod schema for full response validation (REQUIRED)
     * @param variables - Optional variables for the mutation
     * @param metadata - Optional trace metadata for observability
     * @param headers - Optional HTTP headers to send with the request
     * @returns Validated mutation result
     */
    mutation<TResponse>(mutation: string, schema: {
        response: z.ZodSchema<TResponse>;
    }, variables?: Record<string, unknown>, metadata?: TraceMetadata, headers?: Record<string, string>): Promise<TResponse>;
    /**
     * Execute a GraphQL operation (query or mutation).
     *
     * Builds the graphql.v1.Plugin proto message, executes through orchestrator,
     * and validates the full response against the required schema.
     */
    private executeGraphQL;
}
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