code: def unbind(self) -> Tuple[View, Dict[Variable, int]]:
      var_unboundvar_val = [
          (v, v.unbind()) for v in self.vars() if v.val is not None
      ]
      unbound_vars: Dict[Variable, Node] = {
          v: uv for v, (uv, _) in var_unboundvar_val
      }
      new_shape = tuple(
          [
              s if isinstance(s, int) else s.substitute(unbound_vars)
              for s in self.shape
          ]
      )
      new_strides = tuple(
          [
              s if isinstance(s, int) else s.substitute(unbound_vars)
              for s in self.strides
          ]
      )
      new_offset = (
          self.offset
          if isinstance(self.offset, int)
          else self.offset.substitute(unbound_vars)
      )
      new_mask = (
          tuple(
              (
                  a
                  if isinstance(a, int)
                  else a.substitute(unbound_vars),
                  b
                  if isinstance(b, int)
                  else b.substitute(unbound_vars),
              )
              for (a, b) in self.mask
          )
          if self.mask is not None
          else None
      )  # noqa: E501
      return View.create(
          new_shape, new_strides, new_offset, new_mask
      ), dict(x[1] for x in var_unboundvar_val)
  
imports: from __future__ import annotations
  import functools, operator, itertools
  from dataclasses import dataclass
  from typing import Tuple, List, Optional, Dict, cast
  from tinygrad.helpers import prod, all_int, argsort
  from tinygrad.shape.symbolic import Node, NumNode, Variable, Set, sint
label_desc: Use image node_id 4 for calling the View obj's underlying member method code with example usage: obj.unbind() and returns: View,  dict