The document provides a specification for writing a Python function. It states that direct access to attributes is allowed without the need for getter/setter methods. The focus is solely on implementing a method without requiring the implementation of a sparse matrix.

1. Write a function in Python that satisfies the following specification. You may access attributes
directly rather than define getter/setter methods. You do not need to implement the sparse matrix
itself, only the method. (Use "Preformatted" text style.)