(rna flags were not available when this was originally written)
action.fcurves.add(frame, val, 1,1,1) --> .add(frame, val, {'REPLACE', 'NEEDED', 'FAST'})
(rna flags were not available when this was originally written)
action.fcurves.add(frame, val, 1,1,1) --> .add(frame, val, {'REPLACE', 'NEEDED', 'FAST'})