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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def FindTypeInfo(self, name):
 """Search for a type_info instance which describes this key."""

    result = self.type_infos.get(name)
    if result is None:
      # Not found, assume string.
      result = type_info.String(name=name, default="")

    return result