Method IsSingleType

src/script/descriptor.cpp:1201–1201

public:
    PKDescriptor(std::unique_ptr<PubkeyProvider> prov, bool xonly = false) : DescriptorImpl(Vector(std::move(prov)), "pk"), m_xonly(xonly) {}
    bool IsSingleType() const final { return true; }

    std::optional<int64_t> ScriptSize() const override {
        return 1 + (m_xonly ? 32 : m_pubkey_args[0]->GetSize()) + 1;