How to set voltage of channel_1/ channel_2 of oscilloscope using yaml file(Oscilloscope is created using pyvisa and pyvisa-sim and yamal file)

Question

I got the correct voltage, current and frequency reading But what parameters to set in yamal file for checking individual channel voltage/frequency and also other parameters of virtual oscilloscope using pyvisa-sim?

Here is referred yaml file: spec: "1.0" devices: gpib_dev: eom: GPIB INSTR: q: "\n" r: "\n" ASRL INSTR: q: "\r\n" r: "\n" TCPIP INSTR: q: "\n" r: "\n" USB INSTR: q: "\n" r: "\n" error: ERROR from GPIB Instruments (Oscilloscope) dialogues: - q: "?IDN" r: "GPIB DEVICE" - q: "*CMD_F?" r: "333000HZ" - q: "MEAS:VOLT:DC?" r: "10 Volts" properties:

  current:
    default: 1.0
    getter:
      q: ":CURR:IMM:AMPL?"
      r: "{:+.8E}"
    setter:
      q: ":CURR:IMM:AMPL {:.3f}"
    specs:
      min: 1
      max: 6
      type: float  
  freq:
    default: 100.0e+09
    setter:
      q: "freq {:.2f}Hz"
    getter:
      q: "freq?"
      r: "{:.2f}"   
  voltage:
    default: 1.0
    getter:
      q: 'MEAS:VOLT:DC?'
      r: "{:+.2E}"
    setter:
      q: ":vol {:.3f}"
    specs:
      min: 1
      max: 6
      type: float