export default class Layer0Test {
    static isLetter(raw: string): boolean;
    static isCommentLetter(raw: string): boolean;
    static isNumber(cell: string): boolean;
    static regexTest(cell: string, pattern: RegExp): boolean;
    static isPeriod(cell: string): boolean;
    static isCarriageReturn(cell: string): boolean;
    static isSpace(cell: string): boolean;
    static isWildcard(cell: string): boolean;
    static isCommentStart(cell: string): boolean;
    static isOperator(cell: string): boolean;
}
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