concepts

algorithm	Generic implementation for a few basic algorithms, such as A* search.
benchmark	Data loaders for various datasets.
dm	Data structures for decision-making representation and algorithms.
dsl	Basic data structures and utilities (e.g., parser, executor) for domain-specific languages.
gui
hw_interface	Interfaces for hardware devices such as robots and cameras.
language	Data structures for language semantics and tools for parsing.
math
nn	Neural network modules that are used in concept learning, such as logic rule modules.
sandbox
simulator
utils
vision	Data structures and algorithms for computer vision.