-- Snake_case dot-access on records parsed from real-world JSON.
stars j:t>R n t;r=jpar! j;r.stargazers_count
trend j:t>R n t;r=jpar! j;r.change_1d
cov j:t>R n t;r=jpar! j;r.people_vaccinated_per_hundred
-- run: stars {"stargazers_count":42}
-- out: 42
-- run: trend {"change_1d":0.07}
-- out: 0.07
-- run: cov {"people_vaccinated_per_hundred":12.5}
-- out: 12.5