#NEWLINE# def _info_transformers( fields , transformers ) : #NEWLINE# #INDENT# 'Utility function to determine transformer functions for variants\n    fields.' #NEWLINE# if ( transformers is None ) : #NEWLINE# #INDENT# transformers = dict ( ) #NEWLINE# #UNINDENT# for f in fields : #NEWLINE# #INDENT# if ( f not in transformers ) : #NEWLINE# #INDENT# transformers [ f ] = config . DEFAULT_TRANSFORMER . get ( f , None ) #NEWLINE# #UNINDENT# #UNINDENT# return tuple ( ( transformers [ f ] for f in fields ) )