ReadonlychannelChannel name (e.g. "train", "validation").
Optional ReadonlycontentContent type of the training data (e.g. "text/csv").
Optional ReadonlyinputInput mode: File (default) or Pipe.
Optional Readonlys3S3 data distribution type: FullyReplicated (default) or ShardedByS3Key.
Optional Readonlys3S3 data type: S3Prefix (default) or ManifestFile.
Readonlys3S3 URI or step output reference.
Input channel for a training step.