Create new type: map (dictionary) with all support for it

smnp/library/function/get.py

@@ -0,0 +1,25 @@
+from smnp.error.runtime import RuntimeException
+from smnp.library.model import CombinedFunction, Function
+from smnp.library.signature import signature, ofType, ofTypes
+from smnp.type.model import Type
+
+_signature1 = signature(ofType(Type.LIST), ofType(Type.INTEGER))
+def _function1(env, list, index):
+    try:
+        return list.value[index]
+    except KeyError:
+        raise RuntimeException(f"Attempt to access item which is outside the list", None)
+
+
+_signature2 = signature(ofType(Type.MAP), ofTypes(Type.INTEGER, Type.STRING, Type.NOTE))
+def _function2(env, map, key):
+    try:
+        return map.value[key]
+    except KeyError:
+        raise RuntimeException(f"Attempt to access unknown key in map", None)
+
+function = CombinedFunction(
+    'get',
+    Function(_signature1, _function1),
+    Function(_signature2, _function2)
+)