/**
 * Creates a binary flags value for a subset of a string array.
 * @param allArr The input string array containing all elements.
 * @param subsetArr The subset of elements to create a binary flags value for.
 * @returns A binary flags value with a `1` bit set for each element in the subset array, in the order they appear in the all array.
 * @throws Throws an error if any elements in the subset array are not present in the all array.
 * @example
 * ```typescript
 * const allArr = ['a', 'b', 'c'];
 * const subsetArr = ['a', 'c'];
 * const binaryFlags = createBinaryFlagsSubset(allArr, subsetArr);
 * // binaryFlags === 0b101
 * ```
 */
export declare const createBinaryFlagsSubset: (allArr: any[] | readonly any[], subsetArr: any[] | readonly any[]) => number;