code: def enable_i2c_slave(self, slave_address):
          
          ret = api.py_aa_i2c_slave_enable(self.handle, slave_address,
                  self.BUFFER_SIZE, self.BUFFER_SIZE)
          _raise_error_if_negative(ret)
docs: Enable I2C slave mode.
  
          The device will respond to the specified slave_address if it is
          addressed.
  
          You can wait for the data with :func:`poll` and get it with
          `i2c_slave_read`.