def header(self, header, default=None):
        return self.headers.get(header.upper(), default)
Applies derivative of the unit conversion factor to params
dataset/ETHPy150Open michaelliao/transwarp/transwarp/web.py/Request.header--crossover with--dataset/ETHPy150Open OpenMDAO/OpenMDAO/openmdao/core/vec_wrapper.py/TgtVecWrapper._apply_unit_derivatives