def custom_endpoint(self, **defaults):
        """
        Creates request builder for custom endpoint

        This method can request any GET endpoint available at Twelve Data
        with a custom set of parameters

        :returns: request builder instance
        :rtype: CustomEndpointRequestBuilder
        """
        ctx = Context.from_context(self.ctx)
        ctx.defaults.update(defaults)
        return CustomEndpoint(ctx, **ctx.defaults)

        Creates request builder for custom endpoint

        This method can request any GET endpoint available at Twelve Data
        with a custom set of parameters

        :returns: request builder instance
        :rtype: CustomEndpointRequestBuilder
        
src/twelvedata/client.py