The function W4MLogger$.message__ is the function that gets automatically called when W4MLogger$info, W4MLogger$debug, W4MLogger$warning, W4MLogger$error or W4MLogger$verbose are invoked. This function is not truly internal, so it has to be considered as external, but should not be exported:
This means its has to do type checking of its inputs, and consider parameters as unsafe.
See get_logger for example usages.
this logger's instance ( .self )
is a string. By default its value should be either "info",
"debug", "warning", "debug", "verbose" or "INTERNAL".
But, if the logger was build with a different color naming, one of
the names provided in the "coloring" named list parameter must be
used, as it determines the color to use.
anything, of any length. If this is not a character vector,
then, its displayable value will be obtained with
capture.output(str(...))
If the resulting character vector's length is greater than one,
then multiple messages will be printed.