Keep symbols public but deprecated

Author: BoD

libraries/apollo-api/api/apollo-api.api

@@ -946,6 +946,9 @@ public final class com/apollographql/apollo/api/http/DefaultHttpRequestComposer$
 	public final fun buildPostBody (Lcom/apollographql/apollo/api/Operation;Lcom/apollographql/apollo/api/CustomScalarAdapters;Ljava/lang/String;Lkotlin/jvm/functions/Function1;)Lcom/apollographql/apollo/api/http/HttpBody;
 	public final fun buildPostBody (Lcom/apollographql/apollo/api/Operation;Lcom/apollographql/apollo/api/CustomScalarAdapters;ZZLjava/lang/String;)Lcom/apollographql/apollo/api/http/HttpBody;
 	public final fun composePayload (Lcom/apollographql/apollo/api/ApolloRequest;)Ljava/util/Map;
+	public final fun getHEADER_ACCEPT_NAME ()Ljava/lang/String;
+	public final fun getHEADER_ACCEPT_VALUE_DEFER ()Ljava/lang/String;
+	public final fun getHEADER_ACCEPT_VALUE_MULTIPART ()Ljava/lang/String;
 }
 
 public final class com/apollographql/apollo/api/http/DefaultWebSocketPayloadComposer : com/apollographql/apollo/api/http/WebSocketPayloadComposer {

libraries/apollo-api/src/commonMain/kotlin/com/apollographql/apollo/api/http/DefaultHttpRequestComposer.kt

@@ -46,11 +46,7 @@ class DefaultHttpRequestComposer(
     val customScalarAdapters = apolloRequest.executionContext[CustomScalarAdapters] ?: CustomScalarAdapters.Empty
 
     val requestHeaders = mutableListOf<HttpHeader>().apply {
-      if (apolloRequest.operation is Subscription<*>) {
-        add(HttpHeader(HEADER_ACCEPT_NAME, HEADER_ACCEPT_VALUE_SUBSCRIPTIONS))
-      } else {
-        add(HttpHeader(HEADER_ACCEPT_NAME, acceptHeaderQueriesAndMutations))
-      }
+      add(HttpHeader("Accept", if (apolloRequest.operation is Subscription<*>) HEADER_ACCEPT_VALUE_SUBSCRIPTIONS else acceptHeaderQueriesAndMutations))
       if (apolloRequest.httpHeaders != null) {
         addAll(apolloRequest.httpHeaders)
       }
@@ -101,9 +97,22 @@ class DefaultHttpRequestComposer(
     // for details.
     private const val HEADER_APOLLO_REQUIRE_PREFLIGHT = "Apollo-Require-Preflight"
 
-    private const val HEADER_ACCEPT_NAME = "Accept"
-    private const val HEADER_ACCEPT_VALUE_QUERIES_AND_MUTATIONS = "multipart/mixed;deferSpec=20220824, application/graphql-response+json, application/json"
-    private const val HEADER_ACCEPT_VALUE_SUBSCRIPTIONS = "multipart/mixed;subscriptionSpec=1.0, application/graphql-response+json, application/json"
+    @Deprecated("This was made public by mistake and will be removed in a future version, please use your own constants instead")
+    @ApolloDeprecatedSince(ApolloDeprecatedSince.Version.v5_0_0)
+    val HEADER_ACCEPT_NAME = "Accept"
+
+    @Deprecated("This was made public by mistake and will be removed in a future version, please use your own constants instead")
+    @ApolloDeprecatedSince(ApolloDeprecatedSince.Version.v5_0_0)
+    val HEADER_ACCEPT_VALUE_DEFER = "multipart/mixed;deferSpec=20220824, application/graphql-response+json, application/json"
+
+    @Deprecated("This was made public by mistake and will be removed in a future version, please use your own constants instead")
+    @ApolloDeprecatedSince(ApolloDeprecatedSince.Version.v5_0_0)
+    val HEADER_ACCEPT_VALUE_MULTIPART = "multipart/mixed;subscriptionSpec=1.0, application/graphql-response+json, application/json"
+
+    private const val HEADER_ACCEPT_VALUE_QUERIES_AND_MUTATIONS =
+      "multipart/mixed;deferSpec=20220824, application/graphql-response+json, application/json"
+    private const val HEADER_ACCEPT_VALUE_SUBSCRIPTIONS =
+      "multipart/mixed;subscriptionSpec=1.0, application/graphql-response+json, application/json"
 
     private fun <D : Operation.Data> buildGetUrl(
         serverUrl: String,