<|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
Write a callback function for the following requirements
This callback should be able to store the input emit it when triggered<|im_end|>
<|im_start|>assistant
def store_and_emit(data):
    stored_data = data
    def emit_stored_data():
        return stored_data
    return emit_stored_data<|im_end|>
