Description

Remove codemirror dependency

Is your feature request related to a problem? Please describe.

Currently the built-in Check methods relating to the comparison operators <, >, ==, etc. are sort of long and unwieldy (the rationale here was to make it human-readable). However, it seems like pandas and indeed python uses shorthand of ge (>=), le (<=), etc. for these binary operators.

**Describe the soluti

We get the return annotation for free, so we should allow users to do something with it.