Functions in the Redstone API:
redstone.getSides( )
redstone.getInput( side )
redstone.setOutput( side, boolean )
redstone.getOutput( side )
redstone.getAnalogInput( side )
redstone.setAnalogOutput( side, number )
redstone.getAnalogOutput( side )

Functions in the Redstone API for working with bundled cables:
redstone.getBundledInput( side )
redstone.testBundledInput( side, color )
redstone.setBundledOutput( side, colors )
redstone.getBundledOutput( side )
Type "help bundled" for usage examples.

Events emitted by the redstone API:
"redstone", when the state of any redstone input changes. Use getInput() or getBundledInput() to inspect the changes
Type "help events" to learn about the event system.