For Smart Options, what's the mapping of topics to symbols?
There are 48 channels for market hours and 4 channels for extended hours. See pages 73 and 74 of the OPRA spec for what symbols are on what channels https://assets.website-files.com/5ba40927ac854d8c97bc92d7/628bc18445cf7ec41d21ddfa_OPRA%20Pillar%20Output%20Specification.pdf
Topic names attached: