Dns.query.labels: def of bend-kit-dns@0.7.0.0
Import: import bend-kit-dns@0.7.0.0/dns.bend as Dns
Lines 78-80 of bend-kit-dns@0.7.0.0/dns.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-dns@0.7.0.0/dns.bend&start_line=78&end_line=80

import Base
import bend-kit-bytes@0.3.3.0/bytes.bend as Bytes

# §2.3.4: a name is at most 255 octets in wire form, its final zero octet included.
def query.labels(+id: U32, +xs: List<&2, String>) -> Maybe<&1, Bytes.Bytes>:
  query.if(id, xs, Bool.and(labels.ok(xs), U32.is_le(labels.len(xs, 0), 254)))

Uses (10):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_le
  https://jend.leeeet.dev/definition.txt?path=bend-kit-bytes@0.3.3.0/bytes.bend&name=Bytes
  https://jend.leeeet.dev/definition.txt?path=bend-kit-dns@0.7.0.0/dns.bend&name=labels.len
  https://jend.leeeet.dev/definition.txt?path=bend-kit-dns@0.7.0.0/dns.bend&name=labels.ok
  https://jend.leeeet.dev/definition.txt?path=bend-kit-dns@0.7.0.0/dns.bend&name=query.if