How to perform text infilling

[oierIM]

I'm attempting to perform text infilling, but it doesn't seem to work. I'm not sure if the input that I am providing is correct or not, or how to change it so that it works propertly. Here is the code that I'm using:

from transformers import OFAModel, OFATokenizer

model = OFAModel.from_pretrained('path', use_cache=True)
tokenizer = OFATokenizer.from_pretrained('path')

txt = ' what is the complete text of "A <mask> woman"?'

inputs = tokenizer([txt], return_tensors="pt").input_ids
gen = model.generate(inputs)

If I print 'gen', I get the following: ['\x1a "what's the woman"?"? "what's the woman"?"? "what's']