Integrate in agent.

src/utils/utils.hpp

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <string>
+#include <vector>
 
 namespace dropshell {
 
@@ -13,4 +14,13 @@ void maketitle(const std::string& title);
 
 bool replace_line_in_file(const std::string& file_path, const std::string& search_string, const std::string& replacement_line);
 
+
+// utility functions
+std::string trim(std::string str);
+std::string dequote(std::string str);
+std::string quote(std::string str);
+std::string multi2string(std::vector<std::string> values);
+std::vector<std::string> string2multi(std::string values);
+
+
 } // namespace dropshell