=BUILTINS.A() -> {"ABS",ABS;"ACCRINT",ACCRINT;...}
DEFINE( BUILTINS.A, LAMBDA( VSTACK( HSTACK("ABS", ABS), HSTACK("ACCRINT", ACCRINT), HSTACK("ACCRINTM", ACCRINTM), HSTACK("ACOS", ACOS), HSTACK("ACOSH", ACOSH), HSTACK("ACOT", ACOT), HSTACK("ACOTH", ACOTH), HSTACK("ADDRESS", ADDRESS), HSTACK("AGGREGATE", AGGREGATE), HSTACK("AMORDEGRC", AMORDEGRC), HSTACK("AMORLINC", AMORLINC), HSTACK("AND", AND), HSTACK("ARABIC", ARABIC), HSTACK("AREAS", AREAS), HSTACK("ARRAYTOTEXT", ARRAYTOTEXT), HSTACK("ASC", ASC), HSTACK("ASIN", ASIN), HSTACK("ASINH", ASINH), HSTACK("ATAN", ATAN), HSTACK("ATAN2", ATAN2), HSTACK("ATANH", ATANH), HSTACK("AVEDEV", AVEDEV), HSTACK("AVERAGE", AVERAGE), HSTACK("AVERAGEA", AVERAGEA), HSTACK("AVERAGEIF", AVERAGEIF), HSTACK("AVERAGEIFS", AVERAGEIFS))))
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