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# AWS::SageMaker::ModelPackage TransformInput
<a name="aws-properties-sagemaker-modelpackage-transforminput"></a>

Describes the input source of a transform job and the way the transform job consumes it.

## Syntax
<a name="aws-properties-sagemaker-modelpackage-transforminput-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-sagemaker-modelpackage-transforminput-syntax.json"></a>

```
{
  "[CompressionType](#cfn-sagemaker-modelpackage-transforminput-compressiontype)" : String,
  "[ContentType](#cfn-sagemaker-modelpackage-transforminput-contenttype)" : String,
  "[DataSource](#cfn-sagemaker-modelpackage-transforminput-datasource)" : DataSource,
  "[SplitType](#cfn-sagemaker-modelpackage-transforminput-splittype)" : String
}
```

### YAML
<a name="aws-properties-sagemaker-modelpackage-transforminput-syntax.yaml"></a>

```
  [CompressionType](#cfn-sagemaker-modelpackage-transforminput-compressiontype): String
  [ContentType](#cfn-sagemaker-modelpackage-transforminput-contenttype): String
  [DataSource](#cfn-sagemaker-modelpackage-transforminput-datasource): 
    DataSource
  [SplitType](#cfn-sagemaker-modelpackage-transforminput-splittype): String
```

## Properties
<a name="aws-properties-sagemaker-modelpackage-transforminput-properties"></a>

`CompressionType`  <a name="cfn-sagemaker-modelpackage-transforminput-compressiontype"></a>
If your transform data is compressed, specify the compression type. Amazon SageMaker automatically decompresses the data for the transform job accordingly. The default value is `None`.  
*Required*: No  
*Type*: String  
*Allowed values*: `None | Gzip`  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

`ContentType`  <a name="cfn-sagemaker-modelpackage-transforminput-contenttype"></a>
The multipurpose internet mail extension (MIME) type of the data. Amazon SageMaker uses the MIME type with each http call to transfer data to the transform job.  
*Required*: No  
*Type*: String  
*Pattern*: `.*`  
*Maximum*: `256`  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

`DataSource`  <a name="cfn-sagemaker-modelpackage-transforminput-datasource"></a>
Describes the location of the channel data, which is, the S3 location of the input data that the model can consume.  
*Required*: Yes  
*Type*: [DataSource](aws-properties-sagemaker-modelpackage-datasource.md)  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)

`SplitType`  <a name="cfn-sagemaker-modelpackage-transforminput-splittype"></a>
The method to use to split the transform job's data files into smaller batches. Splitting is necessary when the total size of each object is too large to fit in a single request. You can also use data splitting to improve performance by processing multiple concurrent mini-batches. The default value for `SplitType` is `None`, which indicates that input data files are not split, and request payloads contain the entire contents of an input object. Set the value of this parameter to `Line` to split records on a newline character boundary. `SplitType` also supports a number of record-oriented binary data formats. Currently, the supported record formats are:  
+ RecordIO
+ TFRecord
When splitting is enabled, the size of a mini-batch depends on the values of the `BatchStrategy` and `MaxPayloadInMB` parameters. When the value of `BatchStrategy` is `MultiRecord`, Amazon SageMaker sends the maximum number of records in each request, up to the `MaxPayloadInMB` limit. If the value of `BatchStrategy` is `SingleRecord`, Amazon SageMaker sends individual records in each request.  
Some data formats represent a record as a binary payload wrapped with extra padding bytes. When splitting is applied to a binary data format, padding is removed if the value of `BatchStrategy` is set to `SingleRecord`. Padding is not removed if the value of `BatchStrategy` is set to `MultiRecord`.  
For more information about `RecordIO`, see [Create a Dataset Using RecordIO](https://mxnet.apache.org/api/faq/recordio) in the MXNet documentation. For more information about `TFRecord`, see [Consuming TFRecord data](https://www.tensorflow.org/guide/data#consuming_tfrecord_data) in the TensorFlow documentation.
*Required*: No  
*Type*: String  
*Allowed values*: `None | TFRecord | Line | RecordIO`  
*Update requires*: [Replacement](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-replacement)