<|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
Convert a string to all lowercase using the built-in string method.
string = "This Is A String"<|im_end|>
<|im_start|>assistant
lowercase_string = string.lower()
print(lowercase_string)<|im_end|>
