public MultipartReader(Stream stream, HttpContentHeaders headers,
int bufferSize = DelimitedBuffer.DefaultBufferSize)
{
_buffer = new DelimitedBuffer(stream, bufferSize);
var boundary = headers.GetContentBoundry();
if (boundary.IsNullOrEmpty())
{
throw new ArgumentException("No boundry specified in the content-type header.");
}
_boundary = $"--{boundary}".ToBytes();
_boundaryLine = $"\r\n--{boundary}".ToBytes();
}
