<PackageReference Include="System.Security.Cryptography.Xml" Version="10.0.10" />

System.Security.Cryptography.Xml.CanonicalXmlProcessingInstruction

sealed class CanonicalXmlProcessingInstruction : XmlProcessingInstruction, ICanonicalizableNode
public bool IsInNodeSet { get; set; }

public CanonicalXmlProcessingInstruction(string target, string data, XmlDocument doc, bool defaultNodeSetInclusionState)

public void Write(StringBuilder strBuilder, DocPosition docPos, AncestralNamespaceContextManager anc)

public void WriteHash(HashAlgorithm hash, DocPosition docPos, AncestralNamespaceContextManager anc)