old_contents: import chainerx
  from chainerx import _docs
  
  
  def _set_docs_backend():
      Backend = chainerx.Backend
  
      _docs.set_doc(
          Backend,
          """Pluggable entity that represents a set of homogeneous computing \
  faculties.
  
  A backend holds one or more :class:`~chainerx.Device`\ s, each of which
  represents a physical computing unit.
  """)
  
      _docs.set_doc(
          Backend.name,
          """Backend name.
  
  Returns:
      str: Backend name.
  """)
  
      _docs.set_doc(
          Backend.context,
          """Context to which this backend belongs.
  
  Returns:
      ~chainerx.Context: Context object.
  
  """)
  
      _docs.set_doc(
          Backend.get_device,
          """get_device(index)
  Returns a device specified by given index.
  
  Args:
      index (int): Device index.
  
  Returns:
      ~chainerx.Device: Device object.
  """)
  
      _docs.set_doc(
          Backend.get_device_count,
          """get_device_count()
  Returns the number of devices available in this backend.
  
  Returns:
      int: Number of devices.
  """)
  
  
  def set_docs():
      _set_docs_backend()
  
      _docs.set_doc(
          chainerx.get_backend,
          """get_backend(backend_name)
  Returns a backend specified by the name.
  
  Args:
      backend_name (str): Backend name.
  
  Returns:
      ~chainerx.Backend: Backend object.
  """)
  
new_contents: import chainerx
  from chainerx import _docs
  
  
  def _set_docs_backend():
      Backend = chainerx.Backend
  
      _docs.set_doc(
          Backend,
          """Pluggable entity that represents a set of homogeneous computing \
  faculties.
  
  A backend holds one or more :class:`~chainerx.Device`\ s, each of which
  represents a physical computing unit.
  """)
  
      _docs.set_doc(
          Backend.name,
          """Backend name.
  
  Returns:
      str: Backend name.
  """)
  
      _docs.set_doc(
          Backend.context,
          """Context to which this backend belongs.
  
  Returns:
      ~chainerx.Context: Context object.
  
  """)
  
      _docs.set_doc(
          Backend.get_device,
          """get_device(index)
  Returns a device specified by the given index.
  
  Args:
      index (int): Device index.
  
  Returns:
      ~chainerx.Device: Device object.
  """)
  
      _docs.set_doc(
          Backend.get_device_count,
          """get_device_count()
  Returns the number of devices available in this backend.
  
  Returns:
      int: Number of devices.
  """)
  
  
  def set_docs():
      _set_docs_backend()
  
      _docs.set_doc(
          chainerx.get_backend,
          """get_backend(backend_name)
  Returns a backend specified by the name.
  
  Args:
      backend_name (str): Backend name.
  
  Returns:
      ~chainerx.Backend: Backend object.
  """)
  
subject: Update chainerx/_docs/backend.py