Add test for Parenthesized Context Mgr

test/example-parencontext-normalization/.meta/config.json

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+{
+  "authors": [
+    "brocla"
+  ],
+  "files": {
+    "solution": [
+      "example_parencontext_normalization.py"
+    ]
+  }
+}

test/example-parencontext-normalization/example_parencontext_normalization.py

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+"""Examples of Parenthesized Context Managers. New feature in Python 3.10"""
+
+
+#!/usr/bin/python3
+"""convert json to jsonl"""
+
+from argparse import ArgumentParser
+import json
+
+def main():
+    args = parse_args()
+
+    # Context Mgrs
+    with (
+        open(args.in_filename) as in_file,
+        open(args.out_filename, mode="wt") as out_file,
+    ):
+        records = json.load(in_file)
+        for record in records:
+            out_file.write(json.dumps(record) + "\n")
+
+
+def parse_args():
+    parser = ArgumentParser()
+    parser.add_argument("in_filename")
+    parser.add_argument("out_filename")
+    args = parser.parse_args()
+    return args
+
+if __name__ == "__main__":
+    main()
+
+
+
+
+
+# Examples from python docs
+# https://docs.python.org/3/whatsnew/3.10.html#parenthesized-context-managers
+
+    def CtxManager(): pass
+    def CtxManager1(): pass
+    def CtxManager2(): pass
+    def CtxManager3(): pass
+
+    with (CtxManager() as example):
+        ...
+
+    with (
+        CtxManager1(),
+        CtxManager2()
+    ):
+        ...
+
+    with (CtxManager1() as example,
+        CtxManager2()):
+        ...
+
+    with (CtxManager1(),
+        CtxManager2() as example):
+        ...
+
+    with (
+        CtxManager1() as example1,
+        CtxManager2() as example2
+    ):
+        ...
+    with (
+        CtxManager1() as example1,
+        CtxManager2() as example2,
+        CtxManager3() as example3,
+    ):
+        ...

test/example-parencontext-normalization/mapping.json

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+{
+    "placeholder_0": "main",
+    "placeholder_1": "args",
+    "placeholder_2": "in_file",
+    "placeholder_3": "mode",
+    "placeholder_4": "out_file",
+    "placeholder_5": "records",
+    "placeholder_6": "record",
+    "placeholder_7": "parse_args",
+    "placeholder_8": "parser"
+}

test/example-parencontext-normalization/representation.json

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+{
+    "version": 2
+}