Create a new response object from an application output.  This
        works best if you pass it an application that returns a generator all
        the time.  Sometimes applications may use the `write()` callable
        returned by the `start_response` function.  This tries to resolve such
        edge cases automatically.  But if you don't get the expected output
        you should set `buffered` to `True` which enforces buffering.

        :param app: the WSGI application to execute.
        :param environ: the WSGI environment to execute against.
        :param buffered: set to `True` to enforce buffering.
        :return: a response object.

def from_app(cls, app, environ, buffered=False):
        """Create a new response object from an application output.  This
        works best if you pass it an application that returns a generator all
        the time.  Sometimes applications may use the `write()` callable
        returned by the `start_response` function.  This tries to resolve such
        edge cases automatically.  But if you don't get the expected output
        you should set `buffered` to `True` which enforces buffering.

        :param app: the WSGI application to execute.
        :param environ: the WSGI environment to execute against.
        :param buffered: set to `True` to enforce buffering.
        :return: a response object.
        """
        return cls(*_run_wsgi_app(app, environ, buffered))