collect()

When collect() is used only values for the indicated headers are returned during the run. If there are four columns in a data file and two are collected each line returned by CsvPath.next() will contain two values.

Data signatures
collect( header identifier: $${\color{green}int}$$ ǁ $${\color{green}str}$$, ... )
collect( header: $${\color{green}Any}$$, ... )

Call signatures
collect( header identifier: Term, ... )
collect( header: Header, ... )

Purpose	Value
Main focus	collect() is a side-effect

Context	Qualifier
Match qualifiers	onmatch
Value qualifiers	onmatch

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