def log_norm(func):
@wraps(func)<EOL>def decorated_func(*args, **kwargs):<EOL><INDENT>norm, kwargs = format_norm(kwargs)<EOL>kwargs['<STR_LIT>'] = norm<EOL>return func(*args, **kwargs)<EOL><DEDENT>return decorated_func<EOL>
Wrap ``func`` to handle custom gwpy keywords for a LogNorm colouring