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# AWS::DataPipeline::Pipeline ParameterAttribute
<a name="aws-properties-datapipeline-pipeline-parameterattribute"></a>

`Attribute` is a property of `ParameterObject` that defines the attributes of a parameter object as key-value pairs.

## Syntax
<a name="aws-properties-datapipeline-pipeline-parameterattribute-syntax"></a>

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

### JSON
<a name="aws-properties-datapipeline-pipeline-parameterattribute-syntax.json"></a>

```
{
  "[Key](#cfn-datapipeline-pipeline-parameterattribute-key)" : String,
  "[StringValue](#cfn-datapipeline-pipeline-parameterattribute-stringvalue)" : String
}
```

### YAML
<a name="aws-properties-datapipeline-pipeline-parameterattribute-syntax.yaml"></a>

```
  [Key](#cfn-datapipeline-pipeline-parameterattribute-key): String
  [StringValue](#cfn-datapipeline-pipeline-parameterattribute-stringvalue): 
    String
```

## Properties
<a name="aws-properties-datapipeline-pipeline-parameterattribute-properties"></a>

`Key`  <a name="cfn-datapipeline-pipeline-parameterattribute-key"></a>
The field identifier.  
*Required*: Yes  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Minimum*: `1`  
*Maximum*: `256`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`StringValue`  <a name="cfn-datapipeline-pipeline-parameterattribute-stringvalue"></a>
The field value, expressed as a String.  
*Required*: Yes  
*Type*: String  
*Pattern*: `[\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*`  
*Minimum*: `0`  
*Maximum*: `10240`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)