FilterBest
Description:
[ CCode ( has_construct_function = false ,  type = "GMimeFilter*" ) ]
public FilterBest (FilterBestFlags flags)
  public FilterBest (FilterBestFlags flags)
Creates a new GMimeFilterBest filter.
 flags are used to determine which information to keep statistics of. If the 
      CHARSET bit is set, the filter will be able to compute the best 
      charset for encoding the stream of data filtered. If the ENCODING
       bit is set, the filter will be able to compute the best Content-Transfer-Encoding for use with the stream being filtered.
Note: In order for the get_charset function to work, the stream being filtered MUST already be encoded in UTF-8.
Parameters:
| flags | filter flags | 
Returns:
| a new best filter with flags  |