Make ABI types fully specified (#222)

* Convert Type and Tuple to indexable types

* Convert and combine uint types

* Fix type and unit tests

* Convert Bool

* Fix Tuple getitem

* Convert arrays and array tests

* Fix tuple tests

* [WIP] satisfy mypy

* Refactor ABI types

* Update docs, add Tuple4 and Tuple5, and change type_spec method name

* No longer test on Python 3.6 and 3.7

* No longer test on Python 3.6 and 3.7

* Remove accidentally included file

* Add another literal test case

* Debugging through CI

* blacken

* Remove problematic test case

* Minor test coverage improvements

* Unit test to make sure type_spec_from_annotation always works on all types

* Partially address feedback

* Make uint8 != byte and use typing.Final in a few constructors

* Undo custom set methods

* Fix typo

Co-authored-by: Michael Diamant <michaeldiamant@users.noreply.github.com>

Co-authored-by: Michael Diamant <michaeldiamant@users.noreply.github.com>

.github/workflows/build.yml

@@ -12,7 +12,7 @@ jobs:
     container: python:${{ matrix.python }}-slim
     strategy:
       matrix:
-        python: ['3.6', '3.7', '3.8', '3.9', '3.10']
+        python: ['3.8', '3.9', '3.10']
     steps:
       - run: python3 --version
       - name: Check out code

pyteal/ast/abi/__init__.py

@@ -1,20 +1,68 @@
-from .type import Type, ComputedType
-from .bool import Bool
-from .uint import Uint, Byte, Uint8, Uint16, Uint32, Uint64
-from .tuple import Tuple
-from .array import StaticArray, DynamicArray
+from .type import TypeSpec, BaseType, ComputedType
+from .bool import BoolTypeSpec, Bool
+from .uint import (
+    UintTypeSpec,
+    Uint,
+    ByteTypeSpec,
+    Byte,
+    Uint8TypeSpec,
+    Uint8,
+    Uint16TypeSpec,
+    Uint16,
+    Uint32TypeSpec,
+    Uint32,
+    Uint64TypeSpec,
+    Uint64,
+)
+from .tuple import (
+    TupleTypeSpec,
+    Tuple,
+    TupleElement,
+    Tuple0,
+    Tuple1,
+    Tuple2,
+    Tuple3,
+    Tuple4,
+    Tuple5,
+)
+from .array_base import ArrayTypeSpec, Array, ArrayElement
+from .array_static import StaticArrayTypeSpec, StaticArray
+from .array_dynamic import DynamicArrayTypeSpec, DynamicArray
+from .util import type_spec_from_annotation
 
 __all__ = [
-    "Type",
+    "TypeSpec",
+    "BaseType",
     "ComputedType",
+    "BoolTypeSpec",
     "Bool",
+    "UintTypeSpec",
     "Uint",
+    "ByteTypeSpec",
     "Byte",
+    "Uint8TypeSpec",
     "Uint8",
+    "Uint16TypeSpec",
     "Uint16",
+    "Uint32TypeSpec",
     "Uint32",
+    "Uint64TypeSpec",
     "Uint64",
+    "TupleTypeSpec",
     "Tuple",
+    "TupleElement",
+    "Tuple0",
+    "Tuple1",
+    "Tuple2",
+    "Tuple3",
+    "Tuple4",
+    "Tuple5",
+    "ArrayTypeSpec",
+    "Array",
+    "ArrayElement",
+    "StaticArrayTypeSpec",
     "StaticArray",
+    "DynamicArrayTypeSpec",
     "DynamicArray",
+    "type_spec_from_annotation",
 ]