/**
 * Tests whether the given array of strings can be interpreted as a numeric vector
 *
 * @param {string[]} values
 */
export function inferNumeric(values: string[]): boolean;
/**
 * @param {any} value
 * @returns {value is string | number | boolean}
 */
export function isScalar(value: any): value is string | number | boolean;
/** A set of typical NA values */
export const NAs: Set<string>;
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