# File lib/new_relic/agent/rules_engine/segment_terms_rule.rb, line 24
        def self.valid_prefix_segment_count?(prefix)
          count = prefix.count(SEGMENT_SEPARATOR)
          rindex = prefix.rindex(SEGMENT_SEPARATOR)

          (count == 2 && prefix[rindex + 1].nil?) ||
          (count == 1 && !prefix[rindex + 1].nil?)
        end