code: async def i2c_config(self, command):
          
          delay = int(command[0])
          await self.core.i2c_config(delay)
docs: This method initializes the I2c and sets the optional read delay (in microseconds).
  
          It must be called before doing any other i2c operations for a given device.
          :param command: {"method": "i2c_config", "params": [DELAY]}
          :returns: No Return message.