flow-tools-dev 1:0.68-12.5build7 (arm64 binary) in ubuntu focal

 Flow-tools is library and a collection of programs used to collect,
 send, process, and generate reports from NetFlow data. The tools can be
 used together on a single server or distributed to multiple servers for
 large deployments. The flow-tools library provides an API for
 development of custom applications for NetFlow export versions 1,5,6 and
 the 14 currently defined version 8 subversions. A Perl and Python
 interface have been contributed and are included in the package.
 .
 This package contains the flow-tools libraries and headers.