@function __intersection($arguments...) {
  $args: ();

  @each $arg-value in $arguments {
    @if __is-list-like($arg-value) {
      $args: append($args, $arg-value);
    }
  }

  $args-length: length($args);
  $list: nth($args, 1);
  $result: ();
  $seen: false;
  $continue-outer: false;

  @each $value in $list {
    $continue-outer: false;

    @if (
      if($seen, __cache-index-of($seen, $value), __index-of($result, $value)) <
        0
    ) {
      $args-index: $args-length;

      @while ($args-index > 0 and not $continue-outer) {
        @if __index-of(nth($args, $args-index), $value) < 0 {
          $continue-outer: true;
        }

        @if not($continue-outer) {
          @if $seen {
            $seen: append($seen, $value);
          }

          $result: append($result, $value);
          $args-index: $args-index - 1;
        }
      }
    }
  }

  @return __base-uniq($result);
}

/// Creates a list of unique values in all provided lists
/// for equality comparisons.
///
///
/// @access public
/// @group List
/// @param {List...} $lists... The lists to inspect.
/// @returns {List} Returns the new list of shared values.
/// @example scss
/// $foo: _intersection((1, 2), (4, 2), (2, 1));
/// // => (2,)

@function _intersection($args...) {
  @return call(get-function("__intersection"), $args...);
}