code: def copy(a, order="K"):
      """Creates a copy of a given array on the current device.
  
      This function allocates the new array on the current device. If the given
      array is allocated on the different device, then this function tries to
      copy the contents over the devices.
  
      Args:
          a (cupy.ndarray): The source array.
          order ({'C', 'F', 'A', 'K'}): Row-major (C-style) or column-major
              (Fortran-style) order.
              When ``order`` is ``'A'``, it uses ``'F'`` if ``a`` is column-major
              and uses ``'C'`` otherwise.
              And when ``order`` is ``'K'``, it keeps strides as closely as
              possible.
  
      Returns:
          cupy.ndarray: The copy of ``a`` on the current device.
  
      .. seealso:: :func:`numpy.copy`, :meth:`cupy.ndarray.copy`
  
      """
      if fusion._is_fusing():
          if order != "K":
              raise NotImplementedError(
                  "cupy.copy does not support `order` in fusion yet."
              )
          return fusion._call_ufunc(_core.elementwise_copy, a)
  
      # If the current device is different from the device of ``a``, then this
      # function allocates a new array on the current device, and copies the
      # contents over the devices.
      return a.copy(order=order)
  
file_path: cupy/cupy/_creation/from_data.py
imports: import numpy
  from cupy import _core
  from cupy._core import fusion
label_desc: Use image node_id 5 for calling a global function with example usage: copy(a, order) and returns: a, fusion