Function htmlDocContentDumpOutput 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn htmlDocContentDumpOutput(
    buf: *mut _xmlOutputBuffer,
    cur: *mut _xmlDoc,
    _encoding: *const c_char,
)

Serialize an HTML document to an output buffer.

UPSTREAM-PARITY

void htmlDocContentDumpOutput(xmlOutputBuffer *buf, xmlDoc *cur,
                              const char *encoding);