"""Check the variable name against white/black lists."""
  if blacklist and var_name in blacklist:
    return False
  if not whitelist_prefix:
    return True

  for prefix in whitelist_prefix:
    if var_name.startswith(prefix):
      return True
  return False


def main(parsed_args: argparse.Namespace):
  converted_vars = {}

  for var, value in os.environ.items():

  public static class ImmutableListTailSubListGenerator extends TestStringListGenerator {
    @Override
    protected List<String> create(String[] elements) {
      String[] prefix = {"f", "g"};
      String[] all = new String[elements.length + prefix.length];
      arraycopy(prefix, 0, all, 0, 2);
      arraycopy(elements, 0, all, 2, elements.length);
      return ImmutableList.copyOf(all).subList(2, elements.length + 2);
    }
  }

}

// Pattern - returns pattern using prefix and suffix values.
func (ruleList FilterRuleList) Pattern() string {
	var prefix string
	var suffix string

	for _, rule := range ruleList.Rules {
		switch rule.Name {
		case "prefix":
			prefix = rule.Value
		case "suffix":
			suffix = rule.Value
		}
	}

	return NewPattern(prefix, suffix)
}

        <Status>Enabled</Status>
        <ExcludedPrefixes>
          <Prefix>*/_temporary</Prefix>
        </ExcludedPrefixes>
        <ExcludedPrefixes>
          <Prefix>*/__magic</Prefix>
        </ExcludedPrefixes>
        <ExcludedPrefixes>
          <Prefix>*/_staging</Prefix>
        </ExcludedPrefixes>

        <!-- .. up to 10 prefixes in all -->
</VersioningConfiguration>
```

### Features

          GeneralSpliterator<E> spliterator, Consumer<? super E> consumer) {
        for (GeneralSpliterator<E> prefix = trySplitTestingSize(spliterator);
            prefix != null;
            prefix = trySplitTestingSize(spliterator)) {
          forEach(prefix, consumer);
        }
        long size = spliterator.getExactSizeIfKnown();
        long[] counter = {0};
        spliterator.forEachRemaining(

          GeneralSpliterator<E> spliterator, Consumer<? super E> consumer) {
        for (GeneralSpliterator<E> prefix = trySplitTestingSize(spliterator);
            prefix != null;
            prefix = trySplitTestingSize(spliterator)) {
          forEach(prefix, consumer);
        }
        long size = spliterator.getExactSizeIfKnown();
        long[] counter = {0};
        spliterator.forEachRemaining(

	if o.Marker < o.Prefix {
		o.Marker = ""
	}

	// Marker is set validate pre-condition.
	if o.Marker != "" && o.Prefix != "" {
		// Marker not common with prefix is not implemented. Send an empty response
		if !HasPrefix(o.Marker, o.Prefix) {
			return entries, io.EOF
		}
	}

	// With max keys of zero we have reached eof, return right here.
	if o.Limit == 0 {
		return entries, io.EOF
	}

				return
			}
		case "Bucket":
			z.Bucket, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "Bucket")
				return
			}
		case "Prefix":
			err = z.Prefix.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "Prefix")
				return
			}
		case "NotificationCfg":
			err = z.NotificationCfg.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "NotificationCfg")
				return

						Http: []*networking.HTTPRoute{
							{
								Match: []*networking.HTTPMatchRequest{
									{
										Uri: &networking.StringMatch{
											MatchType: &networking.StringMatch_Prefix{
												Prefix: "/prefix",
											},
										},
									},
								},
								Route: []*networking.HTTPRouteDestination{
									{
										Destination: &networking.Destination{
											Host: "productpage",

	return r.Filter.Validate()
}

// Prefix - a rule can either have prefix under <filter></filter> or under
// <filter><and></and></filter>. This method returns the prefix from the
// location where it is available
func (r Rule) Prefix() string {
	if r.Filter.Prefix != "" {
		return r.Filter.Prefix
	}
	return r.Filter.And.Prefix
}