def build_ctg_header(module_name, module_number):
    """Creates the first line of a module given the name and module number"""
    result = "|".join(
        [
            f"{module_name}:[module_num:{module_number}",
            "svn_version:\\'Unknown\\'",
            "variable_revision_number:4",
            "show_window:True",
            "notes:\\x5B\\'Overlay the embryo outlines on the grayscale image.\\'\\x5D",
            "batch_state:array(\\x5B\\x5D, dtype=uint8)",
            "enabled:True",
            "wants_pause:False]\n",
        ]
    )
    return result