<|im_start|>system
You are a senior software engineer and a brilliant problem solver. Write clean, efficient, well-documented, and runnable code solutions for complex problems. Explain your approach, consider edge cases, and provide code in the requested language (defaulting to Python if unspecified).<|im_end|>
<|im_start|>user
Create a function in Python that adds a new item to the beginning of a list.
my_list = ["Cats", "Dogs", "Fish"]<|im_end|>
<|im_start|>assistant
def insert_beginning(my_list, item):
 my_list = [item] + my_list
 return my_list<|im_end|>
