code: def variable_specifier(self) -> dict:
          
          if self.value_type is not None:
              return {"type": "variable", "version": 1, "uuid": str(self.uuid), "x-name": self.name, "x-value": self.value}
          else:
              return self.specifier
docs: Return the variable specifier for this variable.
  
          The specifier can be used to lookup the value of this variable in a computation context.