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diff --git a/include/inja/template.hpp b/include/inja/template.hpp
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+// Copyright (c) 2019 Pantor. All rights reserved.
+
+#ifndef INCLUDE_INJA_TEMPLATE_HPP_
+#define INCLUDE_INJA_TEMPLATE_HPP_
+
+#include <map>
+#include <memory>
+#include <string>
+#include <vector>
+
+#include "node.hpp"
+#include "statistics.hpp"
+
+
+namespace inja {
+
+/*!
+ * \brief The main inja Template.
+ */
+struct Template {
+  BlockNode root;
+  std::string content;
+
+  explicit Template() { }
+  explicit Template(const std::string& content): content(content) { }
+
+  /// Return number of variables (total number, not distinct ones) in the template
+  int count_variables() {
+    auto statistic_visitor = StatisticsVisitor();
+    root.accept(statistic_visitor);
+    return statistic_visitor.variable_counter;
+  }
+};
+
+using TemplateStorage = std::map<std::string, Template>;
+
+} // namespace inja
+
+#endif // INCLUDE_INJA_TEMPLATE_HPP_