class_docstr: Holds the ops for each dtypes signature like ('ff->f', func1)
  and allows to do look ups for these
code: def _determine_from_args(self, args, casting):
      n = len(args)
      in_types = tuple(arg.dtype for arg in args)
      for op in self._ops:
          op_types = op.in_types
          for i in range(n):
              it = in_types[i]
              ot = op_types[i]
              if not numpy.can_cast(it, ot, casting=casting):
                  break
          else:
              return op
      return None
  
imports: import re
  import numpy
  import cupy
  import cupy._core._routines_manipulation
  from cupy._core._dtype import get_dtype, _raise_if_invalid_cast
  from cupy._core import internal
label_desc: Use image node_id 4 for calling the _OpsRegister obj's underlying member method code with example usage: obj._determine_from_args(args, casting) and returns: None, op