codeninjasuk.github.io/_sass/minimal-mistakes/vendor/breakpoint/parsers/_resolution.scss

@import "resolution/resolution";

@function breakpoint-build-resolution($query-print, $query-resolution, $empty-media, $first) {
  $leader: '';
  // If we're forcing
  @if not ($empty-media) or not ($first) {
    $leader: 'and ';
  }

  @if breakpoint-get('transform resolutions') and $query-resolution {
    $resolutions: breakpoint-make-resolutions($query-resolution);
    $length: length($resolutions);
    $query-holder: '';

    @for $i from 1 through $length {
      $query: '#{$query-print} #{$leader}#{nth($resolutions, $i)}';
      @if $i == 1 {
        $query-holder: $query;
      }
      @else {
        $query-holder: '#{$query-holder}, #{$query}';
      }
    }

    @return $query-holder;
  }
  @else {
    // Return with attached resolution
    @return $query-print;
  }
}