Function xmlOutputBufferCreateIO 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn xmlOutputBufferCreateIO(
    iowrite: Option<xmlOutputWriteCallback>,
    ioclose: Option<xmlOutputCloseCallback>,
    ioctx: *mut c_void,
    encoder: *mut c_void,
) -> *mut _xmlOutputBuffer

Create an output buffer from I/O callbacks.

UPSTREAM-PARITY

xmlOutputBufferPtr xmlOutputBufferCreateIO(
    xmlOutputWriteCallback iowrite, xmlOutputCloseCallback ioclose,
    void *ioctx, xmlCharEncodingHandlerPtr encoder);