Binary package “libdebian-installer4-dev” in ubuntu focal

Library of common debian-installer functions

 This library is used by debian-installer to perform common functions
 such as logging messages and executing commands. If you aren't
 working on debian-installer or building your own install system based
 on debian-installer, then you probably don't need this library.
 .
 This package contains files needed to do libdebian-installer development.