new_contents: #!/usr/bin/env python3
  """
  Build a simple bare-minimum quantum circuit that starts with a single 
  qubit (by default, in state 0) and inverts it. Run the experiment 1000 
  times and print the total count of the states finally observed.
  Qiskit Docs: https://qiskit.org/documentation/getting_started.html
  """
  
  import qiskit as q
  
  
  def single_qubit_measure(qubits: int, classical_bits: int) -> q.result.counts.Counts:
      """
      >>> single_qubit_measure(1, 1)
      {'11': 1000}
      """
      # Use Aer's qasm_simulator
      simulator = q.Aer.get_backend('qasm_simulator')
  
      # Create a Quantum Circuit acting on the q register
      circuit = q.QuantumCircuit(qubits, classical_bits)
  
      # Apply X (NOT) Gate to Qubits 0 & 1
      circuit.x(0)
      circuit.x(1)
  
      # Map the quantum measurement to the classical bits
      circuit.measure([0, 1], [0, 1])
  
      # Execute the circuit on the qasm simulator
      job = q.execute(circuit, simulator, shots=1000)
  
      # Return the histogram data of the results of the experiment.
      return job.result().get_counts(circuit)
  
  
  if __name__ == '__main__':
      counts = single_qubit_measure(2, 2)
      print(f'Total count for various states are: {counts}')
  
subject: Add Qiskit Quantum NOT Gate Example Code (#3255)