code: def asfarray(a, dtype=cupy.float_):
      """Converts array elements to float type.
  
      Args:
          a (cupy.ndarray): Source array.
          dtype: str or dtype object, optional
  
      Returns:
          cupy.ndarray: The input array ``a`` as a float ndarray.
  
      .. seealso:: :func:`numpy.asfarray`
  
      """
      if not cupy.issubdtype(dtype, cupy.inexact):
          dtype = cupy.float_
      return cupy.asarray(a, dtype=dtype)
  
imports: import cupy
  from cupy import _core
label_desc: Use image node_id 2 for calling a global function with example usage: asfarray(a, dtype) and returns: cupy