    def get_type_string(self) -> str:
        """ Get a string representation of type that should be used when declaring this property """
        if self.required:
            return self._type_string
        return f"Optional[{self._type_string}]"
The software constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.