# Credentials
<a name="API_Credentials"></a>

The structure containing the session token being returned.

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

**Important**  
This data type is a UNION, so only one of the following members can be specified when used or returned.

 ** token **   <a name="emroneks-Type-Credentials-token"></a>
The actual session token being returned.  
Type: String  
Length Constraints: Minimum length of 1.  
Pattern: `^.*\S.*$`   
Required: No

## See Also
<a name="API_Credentials_SeeAlso"></a>

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/emr-containers-2020-10-01/Credentials) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/emr-containers-2020-10-01/Credentials) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/emr-containers-2020-10-01/Credentials)