Anonymous struct is a struct without a name. It is used to create a struct on the fly without having to define a struct type.

Append method is a built-in method in Golang used to append more elements to a slice.

Assert is a package that provides a set of helper functions that make it easier to test various properties in your Go programs.

Atoi is a method in the strconv package that converts a string to an integer in Golang. I

ParseInt is a method in the strconv package that converts a string to an integer. It takes in a string, a base, and a bit size. It returns an integer and an error.