Add more-itertools dep

poetry.lock

@@ -113,6 +113,14 @@ category = "main"
 optional = false
 python-versions = ">=3.7"
 
+[[package]]
+name = "more-itertools"
+version = "8.14.0"
+description = "More routines for operating on iterables, beyond itertools"
+category = "main"
+optional = false
+python-versions = ">=3.5"
+
 [[package]]
 name = "mypy"
 version = "0.971"
@@ -372,7 +380,7 @@ testing = ["coverage (>=6.2)", "coverage-enable-subprocess (>=1)", "flaky (>=3.7
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.8"
-content-hash = "a0d89f4b9fd3166ca5b2d0fc30f33fff22a1b43489f09426c45bb69fa37987ea"
+content-hash = "e82156a2ff38a1f6f6276d73eb262f79b943c1f9e21b33bc2f19640f373717cc"
 
 [metadata.files]
 atomicwrites = [
@@ -503,6 +511,10 @@ markupsafe = [
     {file = "MarkupSafe-2.1.1-cp39-cp39-win_amd64.whl", hash = "sha256:46d00d6cfecdde84d40e572d63735ef81423ad31184100411e6e3388d405e247"},
     {file = "MarkupSafe-2.1.1.tar.gz", hash = "sha256:7f91197cc9e48f989d12e4e6fbc46495c446636dfc81b9ccf50bb0ec74b91d4b"},
 ]
+more-itertools = [
+    {file = "more-itertools-8.14.0.tar.gz", hash = "sha256:c09443cd3d5438b8dafccd867a6bc1cb0894389e90cb53d227456b0b0bccb750"},
+    {file = "more_itertools-8.14.0-py3-none-any.whl", hash = "sha256:1bc4f91ee5b1b31ac7ceacc17c09befe6a40a503907baf9c839c229b5095cfd2"},
+]
 mypy = [
     {file = "mypy-0.971-cp310-cp310-macosx_10_9_universal2.whl", hash = "sha256:f2899a3cbd394da157194f913a931edfd4be5f274a88041c9dc2d9cdcb1c315c"},
     {file = "mypy-0.971-cp310-cp310-macosx_10_9_x86_64.whl", hash = "sha256:98e02d56ebe93981c41211c05adb630d1d26c14195d04d95e49cd97dbc046dc5"},

pyproject.toml

@@ -44,6 +44,7 @@ parse-type = "*"
 pytest = ">=6.2.0"
 typing-extensions = "*"
 TatSu = "^5.8.3"  # TODO: Find lowest version we can work with.
+more-itertools = "^8.14.0"  # TODO: Find lowest version we can work with.
 
 [tool.poetry.dev-dependencies]
 tox = "^3.25.1"