/**
 * The value of the `weightAdapter` gene. `null` (or absent) === BASE: the cheap
 * tier runs with no LoRA adapter — the pre-gene default, byte-identical key.
 * A string is an adapter id (e.g. "glm5.2-sft", "glm5.2-sft-dpo").
 */
export type WeightAdapterGene = string | null;
/** The canonical "no adapter" sentinel. Absent gene === BASE === this. */
export declare const BASE_ADAPTER: WeightAdapterGene;
/**
 * The adapter variants Darwin evolution may choose among. BASE is always first
 * (the control). The tuned variants reference adapters the runner produced:
 * SFT-only and SFT+DPO are the two recipes; a ratio variant blends adapter
 * strength. ALL are inert until an actual adapter is trained (GPU job) — the
 * gene only NAMES an adapter; it does not create one.
 */
export declare const WEIGHT_ADAPTERS: WeightAdapterGene[];
/**
 * Normalize a raw gene value. Absent / '' / 'base' / 'none' all coerce to BASE
 * so an unset gene is indistinguishable from an explicit base choice — that's
 * what keeps pre-gene genomes byte-identical.
 */
export declare function normalizeWeightAdapter(v: unknown): WeightAdapterGene;
/**
 * Stable key fragment for a genome's adapter choice. Empty string for BASE so
 * the gene contributes NOTHING to a genome key unless an adapter is selected —
 * the backward-compatibility invariant (a base-adapter genome keys identically
 * to a pre-gene genome).
 */
export declare function weightAdapterSuffix(gene: WeightAdapterGene): string;
/**
 * Map an adapter gene to the CLI flag the cheap-tier solver forwards. BASE
 * emits NO flag (runs the stock model). A tuned adapter emits `--lora-adapter
 * <id>` (the solver loads the adapter onto the cheap base before solving).
 */
export declare function weightAdapterFlags(gene: WeightAdapterGene): string[];
/** True iff the gene selects a real adapter (not base). */
export declare function usesAdapter(gene: WeightAdapterGene): boolean;
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