import { CallToolResult } from "../../../../confluent/schema.js";
import { BaseToolHandler, ToolCategory, ToolConfig } from "../../../../confluent/tools/base-tools.js";
import { ServerRuntime } from "../../../../server-runtime.js";
import { z } from "zod";
export declare const listConsumerGroupsArgs: z.ZodObject<{
    matchStates: z.ZodOptional<z.ZodArray<z.ZodEnum<{
        Unknown: "Unknown";
        PreparingRebalance: "PreparingRebalance";
        CompletingRebalance: "CompletingRebalance";
        Stable: "Stable";
        Dead: "Dead";
        Empty: "Empty";
    }>>>;
    matchType: z.ZodOptional<z.ZodEnum<{
        Classic: "Classic";
        Consumer: "Consumer";
    }>>;
    cluster_id: z.ZodOptional<z.ZodString>;
    environment_id: z.ZodOptional<z.ZodString>;
}, z.core.$strip>;
/**
 * Wire-format response payload. `Record<string, unknown>` compatibility lets it
 * thread cleanly through MCP's `structuredContent` channel without a boundary
 * cast at the call site.
 */
export type ListConsumerGroupsResponse = {
    groups: Array<{
        groupId: string;
        state: string;
        type: string;
        protocolType: string;
        isSimpleConsumerGroup: boolean;
    }>;
    errors: Array<{
        message: string;
        code?: number;
    }>;
} & Record<string, unknown>;
export declare class ListConsumerGroupsHandler extends BaseToolHandler {
    readonly category = ToolCategory.Kafka;
    readonly predicate: import("../../../../confluent/tools/connection-predicates.js").ConnectionPredicate;
    getToolConfig(): ToolConfig;
    handle(runtime: ServerRuntime, toolArguments: Record<string, unknown>): Promise<CallToolResult>;
}
//# sourceMappingURL=list-consumer-groups-handler.d.ts.map