FileInfo.getSize
long getSize()Gets the file's size (in bytes). The size is retrieved through the value of the [gio.types.FILE_ATTRIBUTE_STANDARD_SIZE] attribute and is converted from #guint64 to #goffset before returning the result.
It is an error to call this if the #GFileInfo does not contain [gio.types.FILE_ATTRIBUTE_STANDARD_SIZE].
Returns
a #goffset containing the file's size (in bytes).