// Returns true if a $map is a superset of $sub-map.
@function map-contains-all($map, $sub-map) {
  @each $key, $value in $sub-map {
    @if not (map-has-key($map, $key) and map-get($map, $key) == $value) {
      @return false;
    }
  }
  @return true;
}

// Returns true if a $map has any key-value pair in $sub-map.
@function map-contains-any($map, $sub-map) {
  @each $key, $value in $sub-map {
    @if map-has-key($map, $key) and map-get($map, $key) == $value {
      @return true;
    }
  }
  @return false;
}