Type Alias AppendConditionFailed

AppendConditionFailed:
| { fencing_token_mismatch: FencingToken }
| { seq_num_mismatch: U64 }

Aborted due to a failed condition.

{ fencing_token_mismatch: FencingToken }
- fencing_token_mismatch: FencingToken
  Fencing token did not match. The expected fencing token is returned.
{ seq_num_mismatch: U64 }
- seq_num_mismatch: U64
  Sequence number did not match the tail of the stream. The expected next sequence number is returned.