import { ReadStatError } from "../errors.js";
export declare const SAS_COLUMN_TYPE_NUM = 1;
export declare const SAS_COLUMN_TYPE_CHR = 2;
export declare const XPORT_MONTHS: string[];
export declare function sasValidateName(name: string, maxLen: number): ReadStatError;
export declare function sasValidateVariableName(name: string): ReadStatError;
/** SAS special-missing tag validity: '_' or 'A'-'Z'. */
export declare function sasValidateTag(tag: number): ReadStatError;