[7.x] Emit predicted category using an appropriate JSON type. (#877)#878

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przemekwitek merged 1 commit intoelastic:7.xfrom przemekwitek:backport/7.x/pr-877

Dec 6, 2019

+102-17

Commits on Dec 6, 2019

Emit predicted category using an appropriate JSON type. (elastic#877 )
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