/** Hash declared scene inputs, or discover shader roots and their transitive local runtime imports. */
export declare function snapshotShaderInputs(root: string, declaredInputs?: readonly string[]): Promise<Readonly<Record<string, string>>>;
export interface InstalledThreeBlocksShaderRuntime {
    readonly version: string;
    readonly threeBlocksShaderClosure: string;
}
/** Resolve and hash the installed public `three-blocks/shaders` ESM closure. */
export declare function readInstalledThreeBlocksShaderRuntime(root: string): Promise<InstalledThreeBlocksShaderRuntime | undefined>;