hostname{string}
Uses the DNS protocol to resolve text queries (TXT records) for the
hostname. On success, the Promise is resolved with a two-dimensional array
of the text records available for hostname (e.g.
[ ['v=spf1 ip4:0.0.0.0 ', '~all' ] ]). Each sub-array contains TXT chunks of
one record. Depending on the use case, these could be either joined together or
treated separately.
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