':ivar boto.ec2.elb.loadbalancer.LoadBalancer load_balancer: The
load balancer this instance is registered to.
:ivar str description: A description of the instance.
:ivar str instance_id: The EC2 instance ID.
:ivar str reason_code: Provides information about the cause of
an OutOfService instance. Specifically, it indicates whether the
cause is Elastic Load Balancing or the instance behind the
LoadBalancer.
:ivar str state: Specifies the current state of the instance.'

def __init__(self, load_balancer=None, description=None, state=None, instance_id=None, reason_code=None):

    self.load_balancer = load_balancer
    self.description = description
    self.state = state
    self.instance_id = instance_id
    self.reason_code = reason_code
