class_docstr: Data provider that talks over gRPC.
class_docstr_tok: ["Data","provider","that","talks","over","gRPC","."]
code: def __str__(self):
      return "GrpcDataProvider(addr=%r)" % self._addr
  
imports: import collections
  import contextlib
  import grpc
  from tensorboard.util import tensor_util
  from tensorboard.util import timing
  from tensorboard import errors
  from tensorboard.data import provider
  from tensorboard.data.proto import data_provider_pb2
  from tensorboard.data.proto import data_provider_pb2_grpc
label_desc: Use image node_id 2 for calling the GrpcDataProvider obj's underlying member method code with example usage: obj.__str__() and returns: unknown