Initial QSfera import

Server/vendor/github.com/open-policy-agent/opa/ast/map.go

@@ -0,0 +1,18 @@
+// Copyright 2016 The OPA Authors.  All rights reserved.
+// Use of this source code is governed by an Apache2
+// license that can be found in the LICENSE file.
+
+package ast
+
+import (
+	v1 "github.com/open-policy-agent/opa/v1/ast"
+)
+
+// ValueMap represents a key/value map between AST term values. Any type of term
+// can be used as a key in the map.
+type ValueMap = v1.ValueMap
+
+// NewValueMap returns a new ValueMap.
+func NewValueMap() *ValueMap {
+	return v1.NewValueMap()
+}