import { BlueNode } from '@blue-labs/language';
import { CompositeTimelineChannel } from '../../model/index.js';
import { ChannelEvaluationContext, ChannelMatch, ChannelProcessor } from '../types.js';
/**
 * Compose a checkpoint key that namespaces a child channel under its composite.
 */
export declare function compositeCheckpointKey(compositeKey: string, childKey: string): string;
export declare class CompositeTimelineChannelProcessor implements ChannelProcessor<CompositeTimelineChannel> {
    readonly kind: "channel";
    readonly blueIds: readonly ["HsNatiPt2YvmkWQoqtfrFCbdp75ZUBLBUkWeq84WTfnr"];
    readonly schema: import('zod').ZodObject<import("zod").objectUtil.extendShape<import("zod").objectUtil.extendShape<import("zod").objectUtil.extendShape<{
        description: import('zod').ZodOptional<import('zod').ZodString>;
        name: import('zod').ZodOptional<import('zod').ZodString>;
        order: import('zod').ZodOptional<import('zod').ZodNumber>;
    }, {
        description: import('zod').ZodOptional<import('zod').ZodString>;
        event: import('zod').ZodOptional<import('zod').ZodType<import('@blue-labs/language').BlueNode, import('zod').ZodTypeDef, import('@blue-labs/language').BlueNode>>;
        name: import('zod').ZodOptional<import('zod').ZodString>;
    }>, {
        channels: import('zod').ZodOptional<import('zod').ZodArray<import('zod').ZodString, "many">>;
        description: import('zod').ZodOptional<import('zod').ZodString>;
        name: import('zod').ZodOptional<import('zod').ZodString>;
    }>, import("zod").objectUtil.extendShape<import("zod").objectUtil.extendShape<import("zod").objectUtil.extendShape<{
        description: import('zod').ZodOptional<import('zod').ZodString>;
        name: import('zod').ZodOptional<import('zod').ZodString>;
        order: import('zod').ZodOptional<import('zod').ZodNumber>;
    }, {
        description: import('zod').ZodOptional<import('zod').ZodString>;
        event: import('zod').ZodOptional<import('zod').ZodType<import('@blue-labs/language').BlueNode, import('zod').ZodTypeDef, import('@blue-labs/language').BlueNode>>;
        name: import('zod').ZodOptional<import('zod').ZodString>;
    }>, {
        description: import('zod').ZodOptional<import('zod').ZodString>;
        name: import('zod').ZodOptional<import('zod').ZodString>;
        order: import('zod').ZodOptional<import('zod').ZodNumber>;
    }>, {
        path: import('zod').ZodOptional<import('zod').ZodString>;
        definition: import('zod').ZodOptional<import('zod').ZodType<BlueNode, import('zod').ZodTypeDef, BlueNode>>;
    }>>, "strip", import('zod').ZodTypeAny, {
        event?: BlueNode | undefined;
        name?: string | undefined;
        path?: string | undefined;
        description?: string | undefined;
        order?: number | undefined;
        definition?: BlueNode | undefined;
        channels?: string[] | undefined;
    }, {
        event?: BlueNode | undefined;
        name?: string | undefined;
        path?: string | undefined;
        description?: string | undefined;
        order?: number | undefined;
        definition?: BlueNode | undefined;
        channels?: string[] | undefined;
    }>;
    /**
     * Fallback match hook that delegates to {@link evaluate} for consistent behavior.
     */
    matches(contract: CompositeTimelineChannel, context: ChannelEvaluationContext): boolean | Promise<boolean>;
    /**
     * Resolve child channels and return a delivery per matching child, enriching
     * each delivered event with the source channel key.
     */
    evaluate(contract: CompositeTimelineChannel, context: ChannelEvaluationContext): Promise<ChannelMatch>;
    /**
     * Determine recency by checking whether any child delivery should process.
     */
    isNewerEvent(contract: CompositeTimelineChannel, context: ChannelEvaluationContext, lastEvent: BlueNode): Promise<boolean>;
    /**
     * Attach the source child channel key to event metadata for handler logic.
     */
    private enrichEvent;
    /**
     * Apply child-level recency rules using the composite-scoped checkpoint entry.
     */
    private shouldProcessChild;
    /**
     * Resolve the checkpoint marker for the current scope, if present.
     */
    private resolveCheckpoint;
}
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