cluster_id = conn.run_jobflow('Name for my cluster', instance_groups=
    instance_groups, action_on_failure='TERMINATE_JOB_FLOW', keep_alive=
    True, enable_debugging=True, log_uri='s3://mybucket/logs/',
    hadoop_version=None, ami_version='2.4.9', steps=[], bootstrap_actions=[
    ], ec2_keyname='my-ec2-key', visible_to_all_users=True, job_flow_role=
    'EMR_EC2_DefaultRole', service_role='EMR_DefaultRole')
How to launch and configure an EMR cluster using boto