Saves an object to a disk file.Source:
This function is experimental, don't use for long term storage.
the saved object
a connection or the name of the file to save.
not currently used.
a logical specifying whether saving to a named file is to use "gzip" compression, or one of "gzip", "bzip2" or "xz" to indicate the type of compression to be used. Ignored if file is a connection.