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Print all fields of a single option
dump_opt(opt, opt_name)
the option object returned by set_opt or setGlobalOptions.
set_opt
setGlobalOptions
a single name of the option.
Actually this function is identical to opt[opt_name].
opt[opt_name]
# NOT RUN { opt = set_opt(a = 1, b = "b") dump_opt(opt, "a") dump_opt(opt, "b") # }
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