import { MahjongTile } from "../models/mahjong-tile.js";
import { StandardGroup } from "../models/standard-group.js";
/**
 * The lowest tile of a run.
 *
 * Not simply `tiles[0]`: a called meld arrives in whatever order the caller
 * supplied, and `isValidMeld` sorts only a copy while validating. Any yaku that
 * matches on run position must derive the start rather than assume it.
 */
export declare function runStart(group: StandardGroup): MahjongTile;
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