Optional args #7599

Job	Run time
LPython CI (3.10, ubuntu-latest)	10m 30s
Build LPython to WASM	6m 59s
LPython CI (3.10, windows-2019)	15m 18s
LPython CI (3.10, macos-latest)	6m 44s
Upload Tarball	47s
Check Debug build	3m 36s
Test PIP Installable Packages	2m 48s
Run Integration tests with Python 3.9	3m 1s
Run Integration tests with Python 3.12	3m 11s
Run Integration tests with Python 3.10	4m 15s
Test LLVM 15	3m 42s
Build Jupyter Kernel	3m 53s
Run SymPy tests	3m 35s
Check Release build	8m 16s
Run Integration tests with Python 3.11	3m 21s
Test LLVM 16	3m 34s
Test CPython Interop (@pythoncall)	2m 53s
Test LLVM 10	3m 28s
	1h 29m 51s

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