code: def is_distributed_variable(v):
      """Returns whether `v` is a distributed variable."""
      return isinstance(v, values_lib.DistributedValues) and isinstance(
          v, variables.Variable
      )
  
imports: from tensorflow.python.distribute import distribute_lib
  from tensorflow.python.distribute import values
  from tensorflow.python.keras import backend
  from tensorflow.python.ops import variables
label_desc: Use image node_id 3 for calling a global function with example usage: is_distributed_variable(v) and returns: unknown