import re


def get_function_comment(source: str) -> str:
    """
    Get the function comment header for function source code
    Args:
        source: The function source code to check
    Returns:
        The function header comment
    """
    matches = re.findall(r"\'(.+?)\'", source)
    comment = ""
    if len(matches) > 0:
        comment = matches[0]
    return comment