Convert an RGB value to the hex representation expected by tuya.
        
        Index '5' (DPS_INDEX_COLOUR) is assumed to be in the format:
        rrggbb0hhhssvv
        
        While r, g and b are just hexadecimal values of the corresponding
        Red, Green and Blue values, the h, s and v values (which are values
        between 0 and 1) are scaled to 360 (h) and 255 (s and v) respectively.
        
        Args:
            r(int): Value for the colour red as int from 0-255.
            g(int): Value for the colour green as int from 0-255.
            b(int): Value for the colour blue as int from 0-255.

def _rgb_to_hexvalue(r, g, b):
        """
        Convert an RGB value to the hex representation expected by tuya.
        
        Index '5' (DPS_INDEX_COLOUR) is assumed to be in the format:
        rrggbb0hhhssvv
        
        While r, g and b are just hexadecimal values of the corresponding
        Red, Green and Blue values, the h, s and v values (which are values
        between 0 and 1) are scaled to 360 (h) and 255 (s and v) respectively.
        
        Args:
            r(int): Value for the colour red as int from 0-255.
            g(int): Value for the colour green as int from 0-255.
            b(int): Value for the colour blue as int from 0-255.
        """
        rgb = [r,g,b]
        hsv = colorsys.rgb_to_hsv(rgb[0]/255, rgb[1]/255, rgb[2]/255)

        hexvalue = ""
        for value in rgb:
            temp = str(hex(int(value))).replace("0x","")
            if len(temp) == 1:
                temp = "0" + temp
            hexvalue = hexvalue + temp

        hsvarray = [int(hsv[0] * 360), int(hsv[1] * 255), int(hsv[2] * 255)]
        hexvalue_hsv = ""
        for value in hsvarray:
            temp = str(hex(int(value))).replace("0x","")
            if len(temp) == 1:
                temp = "0" + temp
            hexvalue_hsv = hexvalue_hsv + temp
        if len(hexvalue_hsv) == 7:
            hexvalue = hexvalue + "0" + hexvalue_hsv
        else:
            hexvalue = hexvalue + "00" + hexvalue_hsv

        return hexvalue