Function hyper_request_set_method 

#[unsafe(no_mangle)]
pub extern "C" fn hyper_request_set_method(
    req: *mut hyper_request,
    method: *const u8,
    method_len: usize,
) -> hyper_code

Available on hyper_unstable_ffi and crate feature ffi only.

Set the HTTP Method of the request.