How do i get coefficients values of my IIR filter?

1

Hello,
I want to plot characteristic of my IIR Filter which i created for use of my plugin.
To do so, I need to get an actual values of my coefficients. Maybe thats noob question…
How do i get those values?

my code:

        juce::dsp::AudioBlock<float> block = buffer;
      notchPassFilter.state = *juce::dsp::IIR::Coefficients<float>::makePeakFilter(my_sampleRate,(freqFilter, freqFilter4, freqFilter1), qFactor, (blendValueFilter1, blendValueFilter, blendValueFilter));                                                                    
    notchPassFilter.process(juce::dsp::ProcessContextReplacing<float>(block));

Thanks in advance!