def METHOD_NAME(self, output):
    """Parse the output to identify the non idempotent tasks.
    :param (str) output: A string containing the output of the ansible run.
    :return: A list containing the names of the non idempotent tasks.
    """
    # Remove blank lines to make regex matches easier.
    output = re.sub(r"\n\s*\n*", "\n", output)
    # Remove ansi escape sequences.
    output = strip_ansi_escape(output)
    # Split the output into a list and go through it.
    output_lines = output.split("\n")
    res = []
    task_line = ""
    for _, line in enumerate(output_lines):
        if line.startswith("TASK"):
            task_line = line
        elif line.startswith("changed"):
            host_name = re.search(r"\[(.*)\]", line).groups()[0]
            task_name = re.search(r"\[(.*)\]", task_line).groups()[0]
            res.append(f"* [{host_name}] => {task_name}")
    return res