Unable to use cloudscore+ due to to inability to use linkCollection

[cr458]

Attempting to create a cloud-free S2 composite and hitting:

AttributeError: 'ImageCollection' object has no attribute 'linkCollection'

running something like
filtered_collection = s2.filterDate(start_date, end_date).linkCollection(csPlus, [QA_BAND]).map(lambda img: img.updateMask(img.select(QA_BAND).gte(clear_threshold)))

this user seems to have experienced something similar.