class_docstr: Simple, type-checked, dict-like container for holding repeated scalars.
class_docstr_tok: ["Simple",",","type-checked",",","dict-like","container","for","holding","repeated","scalars","."]
code: def __contains__(self, item):
      # We check the key's type to match the strong-typing flavor of the API.
      # Also this makes it easier to match the behavior of the C++ implementation.
      self._key_checker.CheckValue(item)
      return item in self._values
  
imports: import collections
  import sys
label_desc: Use image node_id 3 for calling the ScalarMap obj's underlying member method code with example usage: obj.__contains__(item) and returns: unknown