Move 'iterable' module

smnp/module/iterable/function/flat.py

@@ -0,0 +1,23 @@
+from smnp.library.model import Function
+from smnp.library.signature import varargSignature, allTypes
+from smnp.type.model import Type
+
+
+_signature = varargSignature(allTypes())
+def _function(env, vararg):
+    return Type.list(doFlat(vararg, [])).decompose()
+
+
+def doFlat(input, output=None):
+    if output is None:
+        output = []
+
+    for item in input:
+        if item.type == Type.LIST:
+            doFlat(item.value, output)
+        else:
+            output.append(item)
+    return output
+
+
+function = Function(_signature, _function, 'flat')