code: def timeout(self):
          
          timeout = self.get_visa_attribute(constants.VI_ATTR_TMO_VALUE)
          if timeout == constants.VI_TMO_INFINITE:
              return float('+inf')
          return timeout
docs: The timeout in milliseconds for all resource I/O operations.
  
          Special values:
  
          - **immediate** (``VI_TMO_IMMEDIATE``): 0
            (for convenience, any value smaller than 1 is considered as 0)
          - **infinite** (``VI_TMO_INFINITE``): ``float('+inf')``
            (for convenience, None is considered as ``float('+inf')``)
  
          To set an **infinite** timeout, you can also use:
  
          >>> del instrument.timeout