Binary package “libflatbuffers1” in ubuntu focal

efficient cross platform serialization library - shared library

 FlatBuffers is an efficient cross platform serialization library for C++, C#,
 C, Go, Java, JavaScript, TypeScript, PHP, and Python. It was originally
 created at Google for game development and other performance-critical
 applications.
 .
 This package contains the runtime library needed for C++ applications.