code: def write(self, content):
      from cupy.cuda import MemoryPointer
      from cupy.cuda.memory import UnownedMemory
      from rmm import DeviceBuffer
  
      if not self._has_write_headers:
          self._headers = headers = pickle.loads(content)
          buffer_types = headers[0]["buffer_types"]
          for buffer_type, size in buffer_types:
              if buffer_type == "cuda":
                  self._buffers.append(DeviceBuffer(size=size))
              else:
                  self._buffers.append(BytesIO())
          self._has_write_headers = True
          return
  
      cur_buf = self._buffers[self._cur_buffer_index]
      cur_buf_size = self._headers[0]["buffer_types"][
          self._cur_buffer_index
      ][1]
      if isinstance(cur_buf, DeviceBuffer):
          cur_cupy_memory = UnownedMemory(
              cur_buf.ptr, cur_buf.size, cur_buf
          )
          cupy_pointer = MemoryPointer(cur_cupy_memory, self._offset)
  
          if isinstance(content, bytes):
              content_length = len(content)
              source_mem = np.frombuffer(
                  content, dtype="uint8"
              ).ctypes.data_as(ctypes.c_void_p)
          else:
              source_mem = MemoryPointer(
                  UnownedMemory(content.ptr, content.size, content), 0
              )
              content_length = source_mem.mem.size
          cupy_pointer.copy_from(source_mem, content_length)
      else:
          content_length = len(content)
          cur_buf.write(content)
      if content_length + self._offset >= cur_buf_size:
          if isinstance(cur_buf, BytesIO):
              self._buffers[self._cur_buffer_index] = cur_buf.getvalue()
          self._cur_buffer_index += 1
          self._offset = 0
      else:
          self._offset += content_length
  
imports: import ctypes
  import pickle
  import uuid
  from io import BytesIO
  from typing import Tuple, Dict, List, Union
  from ..serialization import serialize, deserialize
  from ..utils import lazy_import, implements
  from .base import StorageBackend, StorageLevel, ObjectInfo, register_storage_backend
  from .core import StorageFileObject
  import numpy
  import pandas
label_desc: Use image node_id 7 for calling the CudaFileObject obj's underlying member method code with example usage: obj.write(content) without return types