@subhankarshah Thank you for your contribution! This is a valuable step towards documenting quantization exactly as it is informally implemented in the StableHLO dialect at the moment (although this PR alone won't be able to close #588, because subsequent steps will be needed to specify which operations allow quantized inputs and output and then define their behavior).

However, given that there's an ongoing RFC that touches quantization (#1149), let's put this pull request on hold until we complete the discussion of that RFC.

Closing this PR for now while we're figuring out the next steps for speccing quantization. Thanks again for your work - we will use it as a reference one way or another!