[Enhancement] - Change argument type in getRequestMetada function

Author: Stuart Loxton

models/spring-ai-bedrock-converse/src/main/java/org/springframework/ai/bedrock/converse/BedrockProxyChatModel.java

@@ -425,7 +425,7 @@ else if (message.getMessageType() == MessageType.TOOL) {
 		Document additionalModelRequestFields = ConverseApiUtils
 			.getChatOptionsAdditionalModelRequestFields(this.defaultOptions, prompt.getOptions());
 
-		Map<String, String> requestMetadata = ConverseApiUtils.getRequestMetadata(prompt);
+		Map<String, String> requestMetadata = ConverseApiUtils.getRequestMetadata(prompt.getUserMessage().getMetadata());
 
 		return ConverseRequest.builder()
 			.modelId(updatedRuntimeOptions.getModel())

models/spring-ai-bedrock-converse/src/main/java/org/springframework/ai/bedrock/converse/api/ConverseApiUtils.java

@@ -25,7 +25,6 @@
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.stream.Collectors;
 
-import org.springframework.ai.chat.prompt.Prompt;
 import reactor.core.publisher.Flux;
 import reactor.core.publisher.Mono;
 import software.amazon.awssdk.core.SdkField;
@@ -386,8 +385,7 @@ else if (value instanceof Map mapValue) {
 	}
 
 	@SuppressWarnings("unchecked")
-	public static Map<String, String> getRequestMetadata(Prompt prompt) {
-		Map<String, Object> metadata = prompt.getUserMessage().getMetadata();
+	public static Map<String, String> getRequestMetadata(Map<String, Object> metadata) {
 
 		if (metadata.isEmpty()) {
 			return Map.of();