In this chapter, we have done the following:

• Looked at generic type parameters for data types and for functions
• Learned how to limit generic type parameters so that we can be sure the concrete types chosen implement the proper traits
• Seen various compiler errors relating to generic types, and what they mean
• Learned how to use trait bounds and the Fn, FnMut, and FnOnce traits to create higher-order functions
• Learned about the differences and similarities between using generic types and using trait objects
• Taken our knowledge from this chapter and previous chapters and built a binary tree data structure

In the next chapter, we're going to conclude our Rust journey by looking at many more traits, learning what they mean and how to implement them.