**Describe the enhancement** <!-- A clear and concise description of what you would like added or changed. --> `cbf` client implementation in #174 was not complete. Since #174 has been merged, the feature should be fully implemented. **Use case** <!-- Tell us how you or others will use this new feature or change to an existing feature. --> See [BIP157](https://github.com/bitcoin/bips/blob/master/bip-0157.mediawiki) and [BIP158](https://github.com/bitcoin/bips/blob/master/bip-0158.mediawiki) **Additional context** <!-- Add any other context about the enhancement here. --> See #172
