public GetOpenIdTokenForDeveloperIdentityRequest withIdentityId(String identityId) {
        setIdentityId(identityId);
        return this;
    }
<p>
A unique identifier in the format REGION:GUID.
</p>

@param identityId
       A unique identifier in the format REGION:GUID.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-cognitoidentity/src/main/java/com/amazonaws/services/cognitoidentity/model/GetOpenIdTokenForDeveloperIdentityRequest.java