# NOT RUN {
lg <- lexis_grid(year_start = 1900, year_end = 1905, age_start = 0, age_end = 5)
lexis_lifeline(lg = lg, birth = "1901-09-23")
lexis_lifeline(lg = lg, birth = "1901-09-23", entry = "1902-04-01")
lexis_lifeline(lg = lg, birth = "1901-09-23", exit = "1904-10-31")
# }
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