Excuse me. It seems that this doesn’t work with unique_ptr.
It says:
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX14.0.sdk/usr/include/c++/v1/__memory/unique_ptr.h:686:30 Call to deleted constructor of 'juce::AudioParameterFloat'
Am I supposed to give up using juce::AudioProcessorValueTreeState::ParameterLayout
?