Can you name the main structural patterns for organizing code in a project?

Main structural design patterns help organize classes and objects into larger structures, simplifying maintenance and extension of code. They include:

• Adapter — allows objects with incompatible interfaces to work together.
• Decorator — dynamically adds responsibilities to objects by wrapping them.
• Facade — provides a simplified interface to a complex subsystem.
• Composite — allows grouping objects into a tree structure and working with them uniformly.
• Proxy — controls access to another object, for example, for lazy loading or access control.

In Python, these patterns are often implemented using classes, functions, and built-in language features, such as decorators for the Decorator pattern.