code: def _send(cls, comm, array, peer, dtype, count, stream=None):
      comm._comm.send(array.data.ptr, count, dtype, peer, stream)
  
imports: import numpy
  import warnings
  import cupy
  from cupy.cuda import nccl
  from cupyx.distributed import _store
  from cupyx.distributed._comm import _Backend
  from cupyx.scipy import sparse
label_desc: Use image node_id 7 for calling the _DenseNCCLCommunicator obj's underlying member method code with example usage: obj._send(cls, comm, array, peer, dtype, count, stream) without return types