Binary package “flatbuffers-compiler” in ubuntu focal

efficient cross platform serialization library - compiler

 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 flat buffer compiler that is used for translating
 from .proto files (containing the definitions) to the language binding for the
 supported languages.