def format_style_key(key: str) -> tuple[str, ...]:
    """Convert style keys to camel case and convert shorthand
    styles names to their corresponding css names.

    Args:
        key: The style key to convert.

    Returns:
        Tuple of css style names corresponding to the key provided.
    """
    if key.startswith("--"):
        return (key,)
    key = format.to_camel_case(key)
    return STYLE_PROP_SHORTHAND_MAPPING.get(key, (key,))
Convert style keys to camel case and convert shorthand
    styles names to their corresponding css names.

    Args:
        key: The style key to convert.

    Returns:
        Tuple of css style names corresponding to the key provided.
    
reflex/style.py