let nvram = NVRAM()

let nvram = NVRAM()
let nvramVariableName = "SystemAudioVolume"
// Returns the value of NVRAM variable "SystemAudioVolume"
let value = nvram.OFVariableValue(variableName: nvramVariableName)
print(value ?? "Unknown Value")

let nvram = NVRAM()
// Creates a new NVRAM Variable by the name of "exampleVariable" with value "example value"
let variableName = "exampleVariable"
let variableValue = "example value"
do {
  try nvram.createOrSetOFVariable(variableName: variableName, variableValue: variableValue)
} catch {
  print(error.localizedDescription)
}

let nvram = NVRAM()
do {
  // Deletes NVRAM Variable by the name of "randomVariable"
  try nvram.deleteOFVariable(variableName: "randomVariable")
} catch {
  print(error.localizedDescription)
}

let nvram = NVRAM()
// Returns true or false based on whether or not an NVRAM Variable by the name of "SystemAudioVolume" exists
let variableExists = nvram.OFVariableExists(variableName: "SystemAudioVolume")
print(variableExists)

let nvram = NVRAM() 
let allVariables = nvram.getAllOFVariables()
for (key, value) in allVariables {
  print("\(key): \(value ?? "Unknown Value")")
}