.

src.bak/main/java/com/example/dto/dialogflow/conversation/QueryParamsDTO.java

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2025 Google. This software is provided as-is, without warranty or representation for any use or purpose. 
+ * Your use of it is subject to your agreement with Google.
+ */
+
+package com.example.dto.dialogflow.conversation;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Objects;
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+public record QueryParamsDTO(
+    @JsonProperty("parameters") Map<String, Object> parameters) {
+
+    public QueryParamsDTO {
+        parameters = Objects.requireNonNullElseGet(parameters, HashMap::new);
+        parameters = new HashMap<>(parameters); 
+    }
+
+    public QueryParamsDTO withSessionParameter(String key, Object value) {
+        Map<String, Object> updatedParams = new HashMap<>(this.parameters());
+        updatedParams.put(key, value);
+        return new QueryParamsDTO(updatedParams); 
+    }
+
+    public QueryParamsDTO withSessionParameters(Map<String, Object> parameters) {
+        Map<String, Object> updatedParams = new HashMap<>(this.parameters());
+        updatedParams.putAll(parameters);
+        return new QueryParamsDTO(updatedParams);
+    }
+}