gobject-introspection 1.57.3-1 (amd64 binary) in ubuntu cosmic

 GObject Introspection is a project for providing machine readable
 introspection data of the API of C libraries. This introspection
 data can be used in several different use cases, for example
 automatic code generation for bindings, API verification and documentation
 generation.
 .
 GObject Introspection contains tools to generate and handle the
 introspection data.
 .
 This package contains tools for extracting introspection data from libraries
 and transforming it to different formats.