Get or set log message formatter
Arguments
- formatter
function defining how R objects are converted into a single string, eg
formatter_paste()
,formatter_sprintf()
,formatter_glue()
,formatter_glue_or_sprintf()
,formatter_logging()
, default NULL- namespace
logger namespace
- index
index of the logger within the namespace
See also
Other log configutation functions:
log_appender()
,
log_layout()
,
log_threshold()