GR2_DATA_INFO
EXT_GR2_OPEN_FOR_READ_BEGIN
EXT_GR2_OPEN_FOR_READ_BEGIN
EXT_GR2_OPEN_FOR_WRITE_BEGIN
EXT_GR2_WRITE_FIELD
LOAD_GRIB2MAP
GET_PARMINFO
FREE_GRIB2MAP
TEST_READ_GRIB2MAP
TEST_READ_GRIB2MAP