FileLogger class

Writes log messages to the file.

The FileLogger type exposes the following members:

Constructor	Description
`__init__(self, file_name)`	Create logger to file.

Method	Description
`trace(self, message)`	Writes trace log message; Trace log messages provides generally useful information about application flow.
`warning(self, message)`	Writes warning log message; Warning log messages provides information about unexpected and recoverable event in application flow.