Exported from sekai and sekai.registry. See the Registry guide.
::: sekai.register
::: sekai.make
::: sekai.make_vec
::: sekai.spec
::: sekai.all_specs
::: sekai.deregister
::: sekai.register_namespace
::: sekai.pprint_registry
::: sekai.EnvSpec
::: sekai.WrapperSpec
The functions above operate on a module-level EnvRegistry; create your own instance for an
isolated registry (for example in tests).
::: sekai.registry.EnvRegistry