* Update `opcode` from 3.13.7

* Base `_opcode`

* Add `test__opcode.py` from 3.13.7

* Impl `has_*` methods

* Add more methods

* Update `dis.py` from 3.13.7

* Update `support/bytecode_helper.py` from 3.13.7

* correct is_valid

* Patch failing tests

* Unpatch `support/__init__.py`

* clippy

* Make comments to doc

* impl `_varname_from_oparg` for code

* Unmark passing tests

* Revert changes to `dis`

* Mark failing tests