fix for deeepseek

Author: jamesrochabrun

README.md

@@ -7,6 +7,7 @@
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+[![Buy me a coffee](https://img.shields.io/badge/Buy%20me%20a%20coffee-048754?logo=buymeacoffee)](https://buymeacoffee.com/jamesrochabrun)
 
 An open-source Swift package designed for effortless interaction with OpenAI's public API. 
 

Sources/OpenAI/Public/ResponseModels/Chat/ChatUsage.swift

@@ -9,11 +9,11 @@ import Foundation
 
 public struct ChatUsage: Decodable {
    /// Number of tokens in the prompt
-   public let promptTokens: Int
+   public let promptTokens: Int?
    /// Number of tokens in the generated completion
-   public let completionTokens: Int
+   public let completionTokens: Int?
    /// Total number of tokens used in the request (prompt + completion)
-   public let totalTokens: Int
+   public let totalTokens: Int?
    /// Detailed breakdown of prompt tokens
    public let promptTokensDetails: PromptTokenDetails?
    /// Detailed breakdown of completion tokens
@@ -30,9 +30,9 @@ public struct ChatUsage: Decodable {
 
 public struct PromptTokenDetails: Decodable {
    /// Number of tokens retrieved from cache
-   public let cachedTokens: Int
+   public let cachedTokens: Int?
    /// Number of tokens used for audio processing
-   public let audioTokens: Int
+   public let audioTokens: Int?
 
    enum CodingKeys: String, CodingKey {
       case cachedTokens = "cached_tokens"
@@ -42,13 +42,13 @@ public struct PromptTokenDetails: Decodable {
 
 public struct CompletionTokenDetails: Decodable {
    /// Number of tokens used for reasoning
-   public let reasoningTokens: Int
+   public let reasoningTokens: Int?
    /// Number of tokens used for audio processing
-   public let audioTokens: Int
+   public let audioTokens: Int?
    /// Number of tokens in accepted predictions
-   public let acceptedPredictionTokens: Int
+   public let acceptedPredictionTokens: Int?
    /// Number of tokens in rejected predictions
-   public let rejectedPredictionTokens: Int
+   public let rejectedPredictionTokens: Int?
 
    enum CodingKeys: String, CodingKey {
       case reasoningTokens = "reasoning_tokens"