#NEWLINE# def computeExpression( self , constraint_collection ) : #NEWLINE# #INDENT# value = self . getValue ( ) #NEWLINE# if ( value is None ) : #NEWLINE# #INDENT# return self . computeBuiltinSpec ( constraint_collection = constraint_collection , given_values = ( ) ) #NEWLINE# #UNINDENT# else : #NEWLINE# #INDENT# return self . computeBuiltinSpec ( constraint_collection = constraint_collection , given_values = ( value , ) )