public abstract bool SupportsRelationship(System.ComponentModel.Design.Serialization.MemberRelationship source, System.ComponentModel.Design.Serialization.MemberRelationship relationship);
 protected virtual System.ComponentModel.Design.Serialization.MemberRelationship GetRelationship(System.ComponentModel.Design.Serialization.MemberRelationship source)
 {
     throw null;
 }
 protected virtual void SetRelationship(System.ComponentModel.Design.Serialization.MemberRelationship source, System.ComponentModel.Design.Serialization.MemberRelationship relationship)
 {
 }
 public System.ComponentModel.Design.Serialization.MemberRelationship this[System.ComponentModel.Design.Serialization.MemberRelationship source] {
     get { throw null; } set { }
 }