const otherErrorsInChangeShardKeyMsg = "was converted into a distributed transaction";

...

// Some return paths will strip out the TransientTransactionError label. We want to still

// filter out those errors.

let skippableErrors = [

    ErrorCodes.StaleConfig,

    ErrorCodes.WriteConflict,

    ErrorCodes.LockTimeout,

    ErrorCodes.PreparedTransactionInProgress,

    ErrorCodes.ShardInvalidatedForTargeting

];

// If we're running in a stepdown suite, then attempting to update the shard key may

// interact with stepdowns and transactions to cause the following errors. We only expect

// these errors in stepdown suites and not in other suites, so we surface them to the test

// runner in other scenarios.

const stepdownErrors =

    [ErrorCodes.NoSuchTransaction, ErrorCodes.ConflictingOperationInProgress];

if (this.runningWithStepdowns) {

    skippableErrors.push(...stepdownErrors);

}

// Failed in the document shard key path, but not with a duplicate key error

if (errMsg.includes(otherErrorsInChangeShardKeyMsg)) {

    return skippableErrors.includes(errCode);

}