def add_job_flow_steps(JobFlowId=None, Steps=None):
    """
    AddJobFlowSteps adds new steps to a running cluster. A maximum of 256 steps are allowed in each job flow.
    If your cluster is long-running (such as a Hive data warehouse) or complex, you may require more than 256 steps to process your data. You can bypass the 256-step limitation in various ways, including using SSH to connect to the master node and submitting queries directly to the software running on the master node, such as Hive and Hadoop. For more information on how to do this, see Add More than 256 Steps to a Cluster in the Amazon EMR Management Guide .
    A step specifies the location of a JAR file stored either on the master node of the cluster or in Amazon S3. Each step is performed by the main function of the main class of the JAR file. The main class can be specified either in the manifest of the JAR or by using the MainFunction parameter of the step.
    Amazon EMR executes each step in the order listed. For a step to be considered complete, the main function must exit with a zero exit code and all Hadoop jobs started while the step was running must have completed and run successfully.
    You can only add steps to a cluster that is in one of the following states: STARTING, BOOTSTRAPPING, RUNNING, or WAITING.
    See also: AWS API Documentation
    
    
    :example: response = client.add_job_flow_steps(
        JobFlowId='string',
        Steps=[
            {
                'Name': 'string',
                'ActionOnFailure': 'TERMINATE_JOB_FLOW'|'TERMINATE_CLUSTER'|'CANCEL_AND_WAIT'|'CONTINUE',
                'HadoopJarStep': {
                    'Properties': [
                        {
                            'Key': 'string',
                            'Value': 'string'
                        },
                    ],
                    'Jar': 'string',
                    'MainClass': 'string',
                    'Args': [
                        'string',
                    ]
                }
            },
        ]
    )
    
    
    :type JobFlowId: string
    :param JobFlowId: [REQUIRED]
            A string that uniquely identifies the job flow. This identifier is returned by RunJobFlow and can also be obtained from ListClusters .
            

    :type Steps: list
    :param Steps: [REQUIRED]
            A list of StepConfig to be executed by the job flow.
            (dict) --Specification of a cluster (job flow) step.
            Name (string) -- [REQUIRED]The name of the step.
            ActionOnFailure (string) --The action to take if the step fails.
            HadoopJarStep (dict) -- [REQUIRED]The JAR file used for the step.
            Properties (list) --A list of Java properties that are set when the step runs. You can use these properties to pass key value pairs to your main function.
            (dict) --A key value pair.
            Key (string) --The unique identifier of a key value pair.
            Value (string) --The value part of the identified key.
            
            Jar (string) -- [REQUIRED]A path to a JAR file run during the step.
            MainClass (string) --The name of the main class in the specified Java file. If not specified, the JAR file should specify a Main-Class in its manifest file.
            Args (list) --A list of command line arguments passed to the JAR file's main function when executed.
            (string) --
            
            

    :rtype: dict
    :return: {
        'StepIds': [
            'string',
        ]
    }
    
    
    :returns: 
    (string) --
    
    """
    pass
