public void SetChildValueNull (string name)
{
    SkiaApi.sk_runtime_effect_builder_set_child_nullptr (Handle, name);
}

public void SetChildValue (string name, SKShader shader)
{
    SkiaApi.sk_runtime_effect_builder_set_child_shader (Handle, name, shader.Handle);
}

public void SetChildValue (string name, SKColorFilter colorFilter)
{
    SkiaApi.sk_runtime_effect_builder_set_child_color_filter (Handle, name, colorFilter.Handle);
}

public void SetChildValue (string name, SKBlender blender)
{
    SkiaApi.sk_runtime_effect_builder_set_child_blender (Handle, name, blender.Handle);
}

public void SetChildValueNull (string name)
{
    SkiaApi.sk_runtime_effect_builder_set_child_nullptr (Handle, name);
}

public void SetChildValue (string name, SKShader shader)
{
    SkiaApi.sk_runtime_effect_builder_set_child_shader (Handle, name, shader.Handle);
}

public void SetChildValue (string name, SKColorFilter colorFilter)
{
    SkiaApi.sk_runtime_effect_builder_set_child_color_filter (Handle, name, colorFilter.Handle);
}

public void SetChildValue (string name, SKBlender blender)
{
    SkiaApi.sk_runtime_effect_builder_set_child_blender (Handle, name, blender.Handle);
}

class MemoryWriter : TypeCheckingBinaryWriter
{
    public long Position { get => BaseStream.Position; set => BaseStream.Position = value; }
    public long Length => BaseStream.Length;

    public MemoryWriter(Stream output) : base(output)
    {
    }

    public MemoryWriter(Stream output, bool leaveOpen) : base(output, Encoding.UTF8, leaveOpen)
    {
    }

    public MemoryWriter() : this(new MemoryStream(), false)
    {
    }

class MemoryWriter : TypeCheckingBinaryWriter
{
    public long Position { get => BaseStream.Position; set => BaseStream.Position = value; }
    public long Length => BaseStream.Length;

    public MemoryWriter(Stream output) : base(output)
    {
    }

    public MemoryWriter(Stream output, bool leaveOpen) : base(output, Encoding.UTF8, leaveOpen)
    {
    }

    public MemoryWriter() : this(new MemoryStream(), false)
    {
    }

MemoryWriter memory = new();

var old = memory.BaseStream.Position;
memory.BaseStream.Position = 0;

// keep open
MemoryReader reader = new(memory.BaseStream, true);

while (reader.BaseStream.Position != reader.BaseStream.Length)
{
    // ...
}
reader.Dispose();
memory.BaseStream.Position = old;

MemoryWriter memory = new();

var old = memory.BaseStream.Position;
memory.BaseStream.Position = 0;

// keep open
MemoryReader reader = new(memory.BaseStream, true);

while (reader.BaseStream.Position != reader.BaseStream.Length)
{
    // ...
}
reader.Dispose();
memory.BaseStream.Position = old;