import type { PhaseData } from './types';
export declare const HULL_STABILITY_TOL = 0.000001;
export declare function compute_hull_stability(raw_distance: number | null | undefined, exclude_from_hull?: boolean, tol?: number): {
    e_above_hull: number | undefined;
    is_stable: boolean | undefined;
};
type StabilityEntry = {
    is_stable?: boolean;
    e_above_hull?: number;
};
export declare const entry_is_stable: (entry: StabilityEntry, tol?: number) => boolean;
export declare const is_on_hull: (entry: PhaseData, tol?: number) => boolean;
export declare const get_arity: (entry: PhaseData) => number;
export declare const is_unary_entry: (entry: PhaseData) => boolean;
export {};