import type { AgentProvider, ModelPin } from "../schemas/agent.js";
import type { FleetCapacity, ModelRef } from "./plan-pools.js";
export interface ModelSource {
    readonly provider: AgentProvider;
    readonly ready: boolean;
    readonly models: readonly string[];
}
export interface ModelChoice {
    readonly provider: AgentProvider;
    readonly model: string;
}
export declare const modelPinKey: (choice: ModelChoice) => string;
export declare const parsePinned: (pinned: string) => ModelChoice | undefined;
export declare const readyChain: (sources: readonly ModelSource[], pinned: readonly ModelPin[]) => readonly ModelPin[];
export declare const rungModel: (choice: ModelChoice) => ModelRef | undefined;
export declare const openingRung: <T extends ModelChoice>(chain: readonly T[], capacityOf: (rung: T) => FleetCapacity | undefined, steppedOver?: (rung: T) => boolean) => T | undefined;
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