namespace System.Net.Http.Json
{
    public static class HttpClientJsonExtensions
    {
        [RequiresDynamicCode("JSON serialization and deserialization might require types that cannot be statically analyzed. Use the overload that takes a JsonTypeInfo or JsonSerializerContext.")]
        [RequiresUnreferencedCode("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.")]
        public static Task<HttpResponseMessage!>! PostAsJsonAsync<TValue>(this HttpClient! client, [StringSyntax("Uri")] string? requestUri, TValue value, JsonSerializerOptions? options = null, CancellationToken cancellationToken = default);
    }
}