public void setStageName(String stageName) {
        this.stageName = stageName;
    }
<p>
The name of the stage is the first path segment in the Uniform Resource Identifier (URI) of a call to API
Gateway. Stage names can only contain alphanumeric characters, hyphens, and underscores. Maximum length is 128
characters.
</p>

@param stageName
       The name of the stage is the first path segment in the Uniform Resource Identifier (URI) of a call to API
       Gateway. Stage names can only contain alphanumeric characters, hyphens, and underscores. Maximum length is
       128 characters.
aws-java-sdk-api-gateway/src/main/java/com/amazonaws/services/apigateway/model/CreateStageResult.java