import { type ChildProcess, type SpawnOptions } from "node:child_process";
export interface CliPowerShellWarmStartOptions {
    platform?: NodeJS.Platform;
    cwd: string;
    env: NodeJS.ProcessEnv;
    candidates?: readonly string[];
    spawn?: (command: string, args: string[], options: SpawnOptions) => ChildProcess;
    startupTimeoutMs?: number;
}
export interface ReadyCliPowerShellSession {
    child: ChildProcess;
    cwd: string;
    env: NodeJS.ProcessEnv;
    releaseStartupListeners(): void;
}
/** Begin one unclaimed native PowerShell session while the CLI imports its main runtime graph. */
export declare function startCliPowerShellWarmStart(options: CliPowerShellWarmStartOptions): void;
/** Claim the CLI warm start exactly once; callers attach ownership before releasing its listeners. */
export declare function claimCliPowerShellWarmStart(): Promise<ReadyCliPowerShellSession | null>;
export declare function resetCliPowerShellWarmStartForTests(): Promise<void>;
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