Function nginx::ngx_http_upstream_hide_headers_hash

pub unsafe extern "C" fn ngx_http_upstream_hide_headers_hash(
    cf: *mut ngx_conf_t, 
    conf: *mut ngx_http_upstream_conf_t, 
    prev: *mut ngx_http_upstream_conf_t, 
    default_hide_headers: *mut ngx_str_t, 
    hash: *mut ngx_hash_init_t
) -> ngx_int_t