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from boto.emr.connection import EmrConnection
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from boto.emr.emrobject import BootstrapAction, BootstrapActionList, \
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ClusterStateChangeReason, ClusterStatus, ClusterSummaryList, \
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ClusterSummary, ClusterTimeline, InstanceInfo, \
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InstanceList, InstanceGroupInfo, \
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InstanceGroup, InstanceGroupList, JobFlow, \