http://manual.reallusion.com/iClone/script/python/class_r_l_py_1_1_r_i_morph_component.html

I'm trying a sample code from link above, but it seems I just can't get it work. 
I tested just first 3 lines, and it's the 4th line below that keeps giving me an error, <class 'TypeError'>.

import RLPy

I changed only two strings, "your_mesh_name", "your_morph_name". For "your_mesh_name" I tried my head mesh name, "Face_smooth". And I think there's no problem with this because I could get that mesh string from avatar.GetMeshNames().
And Instead of "your_morph_name", I tried my blendshape name, Face Key slider name("Eyes Blink", "EyesBlink", "Eyes_Blink"...), and "Morph_1"... but to no avail. Still happens a type error.
Where did I get it wrong? Hope to get some answer or codes that works.

You missed the two last arguments. Try:

result = morph_component.AddKey( "your_mesh_name", "your_morph_name", RLPy.RTime(67),  0.5 , False, False)

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iClone 7, 3DXchange 7 Pipeline, CC3 Pipeline, CT8 Pipeline, Iray, Live Face, iPhone Xr, Win 10, i9 9900K ~5GHz, Nvidia RTX 2080 8GB, 16GB Ram, M.2 SSD

Thanks for the answer, but it still doesn't work...
I printed result.IsError() and it says True in the Console Log with and without False arguments.

I'm by all means no developer and having a hard time to figure this out.
Has anyone tried MorphComponent class yet? I really need this to work because it takes too much effort cleaning mocap-ed facial expression...

Sorry, MorphCompoment can only modify the morph inside the morph animator.
The modification of facial expression will be provided in the future.

Oh, okay. Then I think I have to be patient a bit longer and keep cleaning expression clip manually. I hope to see detailed API for morph in the near future. 
Thank you for your reply.