The Quantization Release Blog Post and various demos in the docs make heavy use of the torch.quantization.get_default_qconfig method for configuring quantization algorithm behavior. Oddly, the torch.quantization API Reference 4 makes no reference to this function.
This is unfortunate, because it means there isn’t anywhere to go to get a list of valid parameters to this method. If others agree, and this isn’t intentional, I’d be happy to fine a ticket for this in the GH tracker.