schemas works with python 3.10.6 but not 3.10.9

@FYI: @jziebinski
While running some tests using schemas. e.g the test_fast_broadcast_smoke_test, an error on python 3.10.9 can be observed:
ImportError while loading conftest '/home/mzebrak/1workspace/clive/tests/conftest.py'.
../../conftest.py:12: in <module>
    from clive.__private.config import settings
../../../clive/__init__.py:3: in <module>
    from clive.__private.core.world import World
../../../clive/__private/core/world.py:8: in <module>
    from clive.__private.core.commands.commands import Commands
../../../clive/__private/core/commands/commands.py:7: in <module>
    from clive.__private.core.commands.build_transaction import BuildTransaction
../../../clive/__private/core/commands/build_transaction.py:7: in <module>
    from clive.models import Transaction
../../../clive/models.py:9: in <module>
    from schemas.__private.hive_fields_basic_schemas import (
/home/mzebrak/.pyenv/versions/clive/lib/python3.10/site-packages/schemas/__init__.py:3: in <module>
    from schemas import operations, virtual_operations
/home/mzebrak/.pyenv/versions/clive/lib/python3.10/site-packages/schemas/operations.py:3: in <module>
    from schemas.__private.operations import (
/home/mzebrak/.pyenv/versions/clive/lib/python3.10/site-packages/schemas/__private/operations/__init__.py:120: in <module>
    Hf26OperationType = OperationType[AssetHiveHF26, AssetHbdHF26, AssetVestsHF26]
E   TypeError: There are no type variables left in schemas.__private.operations.account_create_operation.AccountCreateOperation | schemas.__private.operations.account_update2_operation.AccountUpdate2Operation | schemas.__private.operations.account_update_operation.AccountUpdateOperation | schemas.__private.operations.account_witness_proxy_operation.AccountWitnessProxyOperation | schemas.__private.operations.account_witness_vote_operation.AccountWitnessVoteOperation | schemas.__private.operations.cancel_transfer_from_savings_operation.CancelTransferFromSavingsOperation | schemas.__private.operations.change_recovery_account_operation.ChangeRecoveryAccountOperation | schemas.__private.operations.claim_account_operation.ClaimAccountOperation | schemas.__private.operations.claim_reward_balance_operation.ClaimRewardBalanceOperation | schemas.__private.operations.collateralized_convert_operation.CollateralizedConvertOperation | schemas.__private.operations.comment_operation.CommentOperation | schemas.__private.operations.comment_options_operation.CommentOptionsOperation | schemas.__private.operations.convert_operation.ConvertOperation | schemas.__private.operations.create_claimed_account_operation.CreateClaimedAccountOperation | schemas.__private.operations.create_proposal_operation.CreateProposalOperation | schemas.__private.operations.custom_binary_operation.CustomBinaryOperation | schemas.__private.operations.custom_json_operation.CustomJsonOperation | schemas.__private.operations.custom_operation.CustomOperation | schemas.__private.operations.decline_voting_rights_operation.DeclineVotingRightsOperation | schemas.__private.operations.delegate_vesting_shares_operation.DelegateVestingSharesOperation | schemas.__private.operations.delete_comment_operation.DeleteCommentOperation | schemas.__private.operations.escrow_approve_operation.EscrowApproveOperation | schemas.__private.operations.escrow_dispute_operation.EscrowDisputeOperation | schemas.__private.operations.escrow_release_operation.EscrowReleaseOperation | schemas.__private.operations.escrow_transfer_operation.EscrowTransferOperation | schemas.__private.operations.feed_publish_operation.FeedPublishOperation | schemas.__private.operations.limit_order_cancel_operation.LimitOrderCancelOperation | schemas.__private.operations.limit_order_create2_operation.LimitOrderCreate2Operation | schemas.__private.operations.limit_order_create_operation.LimitOrderCreateOperation | schemas.__private.operations.recover_account_operation.RecoverAccountOperation | schemas.__private.operations.recurrent_transfer_operation.RecurrentTransferOperation | schemas.__private.operations.remove_proposal_operation.RemoveProposalOperation | schemas.__private.operations.request_account_recovery_operation.RequestAccountRecoveryOperation | schemas.__private.operations.reset_account_operation.ResetAccountOperation | schemas.__private.operations.set_reset_account_operation.SetResetAccountOperation | schemas.__private.operations.set_withdraw_vesting_route_operation.SetWithdrawVestingRouteOperation | schemas.__private.operations.transfer_from_savings_operation.TransferFromSavingsOperation | schemas.__private.operations.transfer_operation.TransferOperation | schemas.__private.operations.transfer_to_savings_operation.TransferToSavingsOperation | schemas.__private.operations.transfer_to_vesting_operation.TransferToVestingOperation | schemas.__private.operations.update_proposal_operation.UpdateProposalOperation | schemas.__private.operations.update_proposal_votes_operation.UpdateProposalVotesOperation | schemas.__private.operations.vote_operation.VoteOperation | schemas.__private.operations.withdraw_vesting_operation.WithdrawVestingOperation | schemas.__private.operations.witness_block_approve_operation.WitnessBlockApproveOperation | schemas.__private.operations.witness_set_properties_operation.WitnessSetPropertiesOperation | schemas.__private.operations.witness_update_operation.WitnessUpdateOperation
After some investigation it looks like the code works fine on 3.10.6 but somewhere up to 3.10.9 (maybe before this micro release) it fails.
Edited May 29, 2023 by Mateusz Żebrak