/** Runtime validation shared by SDK calculations and protocol adapters. */
export declare class CoreInputError extends RangeError {
    readonly code: string;
    readonly path: string;
    constructor(path: string, message: string, code?: string);
}
export declare function assertInteger(value: unknown, path: string, minimum: number, maximum: number): asserts value is number;
export declare function assertFiniteNumber(value: unknown, path: string, minimum: number, maximum: number): asserts value is number;
export declare function resolveEnum<T extends string>(value: unknown, choices: readonly T[], fallback: T, path: string): T;
/** 非空的枚举数组：去重并保留首次出现的顺序；省略时返回 undefined */
export declare function resolveEnumList<T extends string>(value: unknown, choices: readonly T[], path: string): T[] | undefined;
export type CivilDateTime = {
    year: number;
    month: number;
    day: number;
    hour?: number;
    minute?: number;
    second?: number;
};
export declare function validateCivilDateTime(input: CivilDateTime, path?: string): void;
/** Date.UTC remaps years 0–99; setUTCFullYear preserves the specified year.
 * Only trusted Intl-derived fields may skip validation when timezone sampling crosses the input year range. */
export declare function createUtcDateTime(input: CivilDateTime, validateInput?: boolean): Date;
export declare function parseCivilDate(value: unknown, path?: string): CivilDateTime & {
    hour: number;
};
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