Get the instance status
# S4 method for ECSFargateProvider
getDockerInstanceStatus(provider, instanceHandles, verbose = 0L)S4 CloudProvider object. The service provider.
List. A list of instance handles.
Integer. The verbose level, default 1.
A character vector with each element corresponding to an instance in instanceHandles. Each element must be one of three possible characters "initializing", "running" or "stopped"