Binary package “asis-doc” in ubuntu bionic

Ada Semantic Interface Specification (ASIS) documentation

 ASIS (Ada Semantic Interface Specification) lets you develop applications
 to walk through the sources of your Ada programs and examine the semantic
 constructs.
 .
 This package contains the tutorial, news and examples, but not the
 manuals because of their license. They are available online at
 http://www.adacore.com/asis.