This interface provides logging functions for daemon applications such as servers. Log messages are tagged with a numeric logging level, selected from the ordered list of constants below.
Higher levels are more verbose.
An implementation would use the level of a message to decide where and whether to write the message. By default, the shorthand methods are silent in the face of internal exceptions. Arrange to log the message at the given level . Included only for syslog compatiblity. Included only for syslog compatiblity.