code: function noDups (iterable = []) {
    return (errMsgPrefix = '') => {
      const dups = extractDuplicates(iterable)
      return dups.size === 0
        ? [ true, [] ]
        : [ false, [ new Error(errMsgPrefix + Array.from(dups).join(', ')) ] ]
    }
  }
docs: This function is curried.
  @param  {Iterable} [iterable=[]] - The iterable whose elements are checked for duplicates
  @param  {String} [errMsgPrefix=''] - A string to prefix any found duplicates in the error message
  @return {Tuple<Boolean, Array<Error>>}
  @see {@link module:@justinc/jsdocs.Tuple}
  @tutorial curry