import { Assertion as CoreAssertion, NumericAssertionBuilder, GeneralAssertionBuilder } from './internal/assertion.js';
type GrpcAssertionSource = 'RESPONSE_TIME' | 'GRPC_STATUS_CODE' | 'GRPC_HEALTHCHECK_STATUS' | 'GRPC_RESPONSE' | 'TEXT_BODY' | 'GRPC_METADATA';
export type GrpcAssertion = CoreAssertion<GrpcAssertionSource>;
/**
 * Health-check serving-status labels for use with
 * {@link GrpcAssertionBuilder.healthCheckStatus}. These are the labels of the
 * `grpc.health.v1.HealthCheckResponse.ServingStatus` enum.
 *
 * @example
 * ```typescript
 * GrpcAssertionBuilder.healthCheckStatus().equals('SERVING')
 * ```
 */
export type GrpcHealthStatus = 'UNKNOWN' | 'SERVING' | 'NOT_SERVING' | 'SERVICE_UNKNOWN';
/**
 * Maps each {@link GrpcHealthStatus} label to the numeric wire target the gRPC
 * runner evaluates health-check status against (it parses `target` with `Atoi`).
 * These are the `grpc.health.v1.HealthCheckResponse.ServingStatus` enum values:
 * 0 = UNKNOWN, 1 = SERVING, 2 = NOT_SERVING, 3 = SERVICE_UNKNOWN.
 *
 * This is the single source of truth for the label↔number mapping — the codegen
 * reverse-maps through it rather than duplicating the literals.
 */
export declare const grpcHealthStatusTargetByLabel: Record<GrpcHealthStatus, string>;
type GrpcHealthStatusTarget = GrpcHealthStatus | 0 | 1 | 2 | 3;
/**
 * Assertion builder for the gRPC health-check serving status. The runner evaluates
 * the status numerically, so `.equals()`/`.notEquals()` accept a friendly label
 * (or the raw enum number) and emit the numeric wire target. Only EQUALS and
 * NOT_EQUALS are supported — the runner rejects other comparisons for this source.
 */
declare class HealthCheckStatusAssertionBuilder {
    equals(target: GrpcHealthStatusTarget): GrpcAssertion;
    notEquals(target: GrpcHealthStatusTarget): GrpcAssertion;
}
/**
 * Builder class for creating gRPC monitor assertions.
 * Provides methods to create assertions for gRPC call responses.
 *
 * @example
 * ```typescript
 * // Response time assertions
 * GrpcAssertionBuilder.responseTime().lessThan(1000)
 *
 * // gRPC status code assertions (e.g. 0 = OK)
 * GrpcAssertionBuilder.statusCode().equals(0)
 *
 * // Health-check status assertions (HEALTH mode)
 * GrpcAssertionBuilder.healthCheckStatus().equals('SERVING')
 *
 * // Response message assertions (BEHAVIOR mode)
 * GrpcAssertionBuilder.responseMessage('$.status').equals('ok')
 *
 * // Response metadata (header) assertions
 * GrpcAssertionBuilder.responseMetadata('content-type').contains('grpc')
 * ```
 */
export declare class GrpcAssertionBuilder {
    /**
     * Creates an assertion builder for gRPC response time.
     * @returns A numeric assertion builder for response time in milliseconds.
     */
    static responseTime(): NumericAssertionBuilder<GrpcAssertionSource, string>;
    /**
     * Creates an assertion builder for the gRPC status code.
     * @returns A numeric assertion builder for the gRPC status code.
     */
    static statusCode(): NumericAssertionBuilder<GrpcAssertionSource, string>;
    /**
     * Creates an assertion builder for the gRPC health-check status (HEALTH mode).
     * `.equals()`/`.notEquals()` accept a friendly {@link GrpcHealthStatus} label
     * (e.g. `'SERVING'`) — or the raw enum number `0`–`3` — and emit the numeric
     * serving-status value the runner evaluates.
     * @returns An assertion builder for the health-check status.
     */
    static healthCheckStatus(): HealthCheckStatusAssertionBuilder;
    /**
     * Creates an assertion builder for the gRPC response message (BEHAVIOR mode).
     * @param property Optional JSON path to a specific property (e.g., '$.status').
     * @returns A general assertion builder for the response message.
     */
    static responseMessage(property?: string): GeneralAssertionBuilder<GrpcAssertionSource, string | number | boolean>;
    /**
     * Creates an assertion builder for the raw gRPC response body as text (BEHAVIOR mode).
     * @param property Optional property path for text content.
     * @returns A general assertion builder for the text response body.
     */
    static textBody(property?: string): GeneralAssertionBuilder<GrpcAssertionSource, string | number | boolean>;
    /**
     * Creates an assertion builder for gRPC response metadata (headers).
     * @param property Optional metadata key to assert against.
     * @returns A general assertion builder for the response metadata.
     */
    static responseMetadata(property?: string): GeneralAssertionBuilder<GrpcAssertionSource, string | number | boolean>;
}
export {};