class_docstr: Possible kinds of iter mapping check level.
docstr: Helper to create level enum from string
docstr_tok: ["Helper","to","create","level","enum","from","string"]
code: def from_str(name: str):
      """Helper to create level enum from string"""
      if name is None:
          return IterMapLevel.NoCheck
      name = name.lower()
      if name == "bijective":
          check_level = IterMapLevel.Bijective
      elif name == "surjective":
          check_level = IterMapLevel.Surjective
      elif name == "nocheck":
          check_level = IterMapLevel.NoCheck
      else:
          raise ValueError(f"Unknown check level {name}")
      return check_level
  
imports: from enum import IntEnum
  import tvm._ffi
  from tvm.runtime import Object
  from tvm.ir import PrimExpr
  from .None import _ffi_api
label_desc: Use image node_id 1 for calling the IterMapLevel obj's underlying member method code with example usage: obj.from_str(name) and returns: check_level, IterMapLevel