On this page:
gl Get Integer64i_ v
gl Get Buffer Parameteri64v
Version: 5.1

11 OpenGL version 3.2

(glGetInteger64i_v target index data)  any
  target : exact-integer?
  index : exact-nonnegative-integer?
  data : s64vector?
(glGetBufferParameteri64v target pname)  s64vector?
  target : exact-integer?
  pname : exact-integer?