Here are the data structures with brief descriptions:

Clsquic_engine_api
Clsquic_engine_settings
Clsquic_http_header
Clsquic_http_headers
Clsquic_logger_if
Clsquic_out_spec
Clsquic_packout_mem_if
Clsquic_reader
Clsquic_stream_if	The definition of callback functions call by lsquic_stream to process events