Nullable value type may be null.

Using member 'System.Net.Http.Json.JsonContent.Create<T>(T, MediaTypeHeaderValue, JsonSerializerOptions)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.

Using member 'System.Text.Json.JsonSerializerOptions.Default.get' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.

Using member 'System.Net.Http.Json.HttpContentJsonExtensions.ReadFromJsonAsync<T>(HttpContent, JsonSerializerOptions, CancellationToken)' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.

Using member 'System.Text.Json.JsonSerializerOptions.Default.get' which has 'RequiresUnreferencedCodeAttribute' can break functionality when trimming application code. JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext, or make sure all of the required types are preserved.

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

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

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

'EncryptedDataKey' defines operator == or operator != but does not override Object.GetHashCode()