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Reference Manual (Normal Pins)

Input

• inputPinName.value()
  fetch the value from an input pin; reports an error, if there is no value

• inputPinName.valueIfPresent()
  if the input pin has a value, fetch it; otherwise returns nil

• inputPinName.valueIfAbsent(defaultValue)
  if the input pin has a value, fetch it; otherwise returns defaultValue

• inputPinName.hasValue()
  true if the input pin has a value; false if not

Output

• outputPinName.value(value)
  send a value to the output pin

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