SubcircuitPin (CircuitSim Autograder API)

```
@Retention(RUNTIME)
public @interface SubcircuitPin
```
Instructs CircuitSimExtension to find and inject the Pin component into an InputPin or OutputPin field in a test class.
When you annotate an InputPin or OutputPin field in a test class with this, CircuitSimExtension will search the subcircuit for a Pin component with direction (input/output) matching the type of the field, bitsize bits(), and label label(). If label() is "" (the default), it will search for a label matching the name of the field instead.

See Also:

Subcircuit.lookupPin(String,boolean,int), InputPin, OutputPin

- Required Element Summary
  
  Required Elements
  Modifier and Type Required Element Description
  
  int bits
  The bit size of a matching Pin.
- Optional Element Summary
  
  Optional Elements
  Modifier and Type Optional Element Description
  
  String label
  The label of a matching Pin.

- Element Detail
  - bits
```
int bits
```
    The bit size of a matching Pin.
    
    Returns:
    
    The bit size of a matching Pin.
- - label
```
String label
```
    The label of a matching Pin. If empty (the default), CircuitSimExtension will use the name of the field.
    
    Returns:
    
    The label of a matching Pin.
    
    Default:
    
    ""