#
# Numeric-only value.
#
# This is a union, which means that this structure can contain either one of the fields below.
# The structure is prefixed with tag - a selector value that indicates which particular field is encoded.
#

@union                          # Tag is 2 bits long.

Empty empty                     # Empty field, used to represent an undefined value.

int64   integer_value
float32 real_value