class_docstr: A node provider that merely reports the current cluster state.
  
  This is used for laptop mode / manual cluster setup modes, in order to
  provide status reporting in the same way for users.
class_docstr_tok: ["A","node","provider","that","merely","reports","the","current","cluster","state",".","This","is","used","for","laptop","mode","\/","manual","cluster","setup","modes",",","in","order","to","provide","status","reporting","in","the","same","way","for","users","."]
code: def is_running(self, node_id):
      return node_id in self.nodes
  
file_path: ray/python/ray/autoscaler/_private/readonly/node_provider.py
imports: from typing import List, Tuple
  from ray.autoscaler._private.util import format_readonly_node_type
  from ray.autoscaler.node_provider import NodeProvider
  from ray.autoscaler.tags import NODE_KIND_HEAD, STATUS_UP_TO_DATE, TAG_RAY_NODE_KIND, TAG_RAY_NODE_NAME, TAG_RAY_NODE_STATUS, TAG_RAY_USER_NODE_TYPE
label_desc: Use image node_id 5 for calling the ReadOnlyNodeProvider obj's underlying member method code with example usage: obj.is_running(node_id) and returns: unknown