Non-nullable field '_first' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.

Non-nullable field '_last' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.

Missing XML comment for publicly visible type or member 'SequenceBuilder<T>'

Missing XML comment for publicly visible type or member 'SequenceBuilder<T>.Append(ReadOnlyMemory<T>)'

Missing XML comment for publicly visible type or member 'SequenceBuilder<T>.Build()'

Missing XML comment for publicly visible type or member 'StreamingChatToolCallsBuilder'

Missing XML comment for publicly visible type or member 'StreamingChatToolCallsBuilder.Append(StreamingChatToolCallUpdate)'

Missing XML comment for publicly visible type or member 'StreamingChatToolCallsBuilder.Build()'

Non-nullable field '_first' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.