# WorkflowParameter
<a name="API_WorkflowParameter"></a>

A workflow parameter.

## Contents
<a name="API_WorkflowParameter_Contents"></a>

 ** description **   <a name="omics-Type-WorkflowParameter-description"></a>
The parameter's description.  
Type: String  
Length Constraints: Minimum length of 0. Maximum length of 256.  
Pattern: `[\p{L}||\p{M}||\p{Z}||\p{S}||\p{N}||\p{P}]+`   
Required: No

 ** optional **   <a name="omics-Type-WorkflowParameter-optional"></a>
Whether the parameter is optional.  
Type: Boolean  
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/omics-2022-11-28/WorkflowParameter) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/omics-2022-11-28/WorkflowParameter) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/omics-2022-11-28/WorkflowParameter)