mattpolzin · mattpolzin · Feb 24, 2026
diff --git a/Sources/OpenAPIKit/Callbacks.swift b/Sources/OpenAPIKit/Callbacks.swift
@@ -1,12 +1,14 @@
 //
 //  Callbacks.swift
 //  
-//
-//  Created by Mathew Polzin on 11/1/20.
-//
 
 import OpenAPIKitCore
+
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
 import Foundation
+#endif
 
 extension OpenAPI {
 

diff --git a/Sources/OpenAPIKit/Components Object/Components+Locatable.swift b/Sources/OpenAPIKit/Components Object/Components+Locatable.swift
@@ -1,12 +1,14 @@
 //
 //  Components+Locatable.swift
 //  
-//
-//  Created by Mathew Polzin on 3/30/20.
-//
 
 import OpenAPIKitCore
+
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
 import Foundation
+#endif
 
 /// Anything conforming to ComponentDictionaryLocatable knows
 /// where to find resources of its type in the Components Dictionary.

diff --git a/Sources/OpenAPIKit/Components Object/Components.swift b/Sources/OpenAPIKit/Components Object/Components.swift
@@ -1,12 +1,14 @@
 //
 //  Components.swift
 //  
-//
-//  Created by Mathew Polzin on 6/22/19.
-//
 
 import OpenAPIKitCore
+
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
 import Foundation
+#endif
 
 extension OpenAPI {
     /// OpenAPI Spec "Components Object".

diff --git a/Sources/OpenAPIKit/Document/Document.swift b/Sources/OpenAPIKit/Document/Document.swift
@@ -2,11 +2,14 @@
 //  Document.swift
 //  OpenAPI
 //
-//  Created by Mathew Polzin on 1/13/19.
-//
 
 import OpenAPIKitCore
+
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
 import Foundation
+#endif
 
 extension OpenAPI {
     /// The root of an OpenAPI 3.1 document.

diff --git a/Sources/OpenAPIKit/Document/DocumentInfo.swift b/Sources/OpenAPIKit/Document/DocumentInfo.swift
@@ -1,12 +1,14 @@
 //
 //  DocumentInfo.swift
 //  
-//
-//  Created by Mathew Polzin on 12/29/19.
-//
 
 import OpenAPIKitCore
+
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
 import Foundation
+#endif
 
 extension OpenAPI.Document {
     /// OpenAPI Spec "Info Object"

diff --git a/Sources/OpenAPIKit/Either/Either+Convenience.swift b/Sources/OpenAPIKit/Either/Either+Convenience.swift
@@ -1,12 +1,14 @@
 //
 //  Either+Convenience.swift
 //  
-//
-//  Created by Mathew Polzin on 3/29/20.
-//
 
 import OpenAPIKitCore
+
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
 import Foundation
+#endif
 
 // MARK: - Convenience accessors
 extension Either where A: OpenAPIKitCore._OpenAPIReference {

diff --git a/Sources/OpenAPIKit/Example/Example.swift b/Sources/OpenAPIKit/Example/Example.swift
@@ -1,12 +1,14 @@
 //
 //  Example.swift
 //  
-//
-//  Created by Mathew Polzin on 10/6/19.
-//
 
 import OpenAPIKitCore
+
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
 import Foundation
+#endif
 
 extension OpenAPI {
     /// OpenAPI Spec "Example Object"

diff --git a/Sources/OpenAPIKit/Example/ExampleValue.swift b/Sources/OpenAPIKit/Example/ExampleValue.swift
@@ -2,7 +2,11 @@
 //  ExampleValue.swift
 //
 
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
 import Foundation
+#endif
 
 extension OpenAPI.Example {
     /// OpenAPI Spec "Example Object" `datValue`, `serializedValue`,

diff --git a/Sources/OpenAPIKit/ExternalDocumentation.swift b/Sources/OpenAPIKit/ExternalDocumentation.swift
@@ -1,12 +1,14 @@
 //
 //  ExternalDocumentation.swift
 //  
-//
-//  Created by Mathew Polzin on 11/2/19.
-//
 
 import OpenAPIKitCore
+
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
 import Foundation
+#endif
 
 extension OpenAPI {
     /// OpenAPI Spec "External Documentation Object"

diff --git a/Sources/OpenAPIKit/ExternalLoader.swift b/Sources/OpenAPIKit/ExternalLoader.swift
@@ -1,12 +1,14 @@
 //
 //  ExternalLoader.swift
 //  
-//
-//  Created by Mathew Polzin on 7/30/2023.
-//
 
 import OpenAPIKitCore
+
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
 import Foundation
+#endif
 
 // Once we hit language version 6.2 we get warnings (errors for Swift 6
 // language mode) if the ExternalLoader is not a SendableMetatype. We just

diff --git a/Sources/OpenAPIKit/JSONReference.swift b/Sources/OpenAPIKit/JSONReference.swift
@@ -1,12 +1,14 @@
 //
 //  JSONReference.swift
 //  
-//
-//  Created by Mathew Polzin on 6/22/19.
-//
 
 import OpenAPIKitCore
+
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
 import Foundation
+#endif
 
 /// A reference following the JSON Reference specification.
 ///

diff --git a/Sources/OpenAPIKit/Link.swift b/Sources/OpenAPIKit/Link.swift
@@ -1,16 +1,18 @@
 //
 //  Link.swift
 //  
-//
-//  Created by Mathew Polzin on 1/23/20.
-//
 
 // TODO: create validation that operationIds in Link objects
 //       refer to Operation objects in the document that have the
 //       given ids.
 
 import OpenAPIKitCore
+
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
 import Foundation
+#endif
 
 extension OpenAPI {
     /// OpenAPI Spec "Link Object"

diff --git a/Sources/OpenAPIKit/Path Item/DereferencedPathItem.swift b/Sources/OpenAPIKit/Path Item/DereferencedPathItem.swift
@@ -1,12 +1,14 @@
 //
 //  DereferencedPathItem.swift
 //  
-//
-//  Created by Mathew Polzin on 6/18/20.
-//
 
 import OpenAPIKitCore
+
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
 import Foundation
+#endif
 
 /// An `OpenAPI.PathItem` type that guarantees
 /// its `parameters` and operations are inlined instead of

diff --git a/Sources/OpenAPIKit/Schema Conformances/SwiftPrimitiveTypes+OpenAPI.swift b/Sources/OpenAPIKit/Schema Conformances/SwiftPrimitiveTypes+OpenAPI.swift
@@ -2,10 +2,12 @@
 //  SwiftPrimitiveTypes+OpenAPI.swift
 //  OpenAPIKit
 //
-//  Created by Mathew Polzin on 01/13/19.
-//
 
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
 import Foundation
+#endif
 
 extension Optional: OpenAPISchemaType where Wrapped: OpenAPISchemaType {
     static public var openAPISchema: JSONSchema {

diff --git a/Sources/OpenAPIKit/Schema Object/SimplifiedJSONSchema.swift b/Sources/OpenAPIKit/Schema Object/SimplifiedJSONSchema.swift
@@ -1,12 +1,14 @@
 //
 //  SimplifiedJSONSchema.swift
 //  
-//
-//  Created by Mathew Polzin on 9/4/20.
-//
 
 import OpenAPIKitCore
+
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
 import Foundation
+#endif
 
 extension JSONSchema {
     /// Get a  simplified `DereferencedJSONSchema`.

diff --git a/Sources/OpenAPIKit/Security/OAuthFlows.swift b/Sources/OpenAPIKit/Security/OAuthFlows.swift
@@ -1,12 +1,14 @@
 //
 //  OAuthFlows.swift
 //  
-//
-//  Created by Mathew Polzin on 1/23/20.
-//
 
 import OpenAPIKitCore
+
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
 import Foundation
+#endif
 
 extension OpenAPI {
     /// OpenAPI Spec "Oauth Flows Object"

diff --git a/Sources/OpenAPIKit/Security/SecurityScheme.swift b/Sources/OpenAPIKit/Security/SecurityScheme.swift
@@ -1,12 +1,14 @@
 //
 //  SecurityScheme.swift
 //  
-//
-//  Created by Mathew Polzin on 12/30/19.
-//
 
 import OpenAPIKitCore
+
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
 import Foundation
+#endif
 
 extension OpenAPI {
     /// OpenAPI Spec "Security Scheme Object"

diff --git a/Sources/OpenAPIKit/Server.swift b/Sources/OpenAPIKit/Server.swift
@@ -2,11 +2,14 @@
 //  Server.swift
 //  OpenAPIKit
 //
-//  Created by Mathew Polzin on 8/25/19.
-//
 
 import OpenAPIKitCore
+
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
 import Foundation
+#endif
 
 extension OpenAPI {
     /// OpenAPI Spec "Server Object"

diff --git a/Sources/OpenAPIKit/Utility/Container+DecodeURLAsString.swift b/Sources/OpenAPIKit/Utility/Container+DecodeURLAsString.swift
@@ -1,12 +1,14 @@
 //
 //  Container+DecodeURLAsString.swift
 //  
-//
-//  Created by Mathew Polzin on 7/5/20.
-//
 
 import OpenAPIKitCore
+
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
 import Foundation
+#endif
 
 extension KeyedDecodingContainerProtocol {
     internal func decodeURLAsString(forKey key: Self.Key) throws -> URL {

diff --git a/Sources/OpenAPIKit/Utility/OrderedDictionry+LocallyDereferenceable.swift b/Sources/OpenAPIKit/Utility/OrderedDictionry+LocallyDereferenceable.swift
@@ -1,12 +1,14 @@
 //
 //  OrderedDictionry+LocallyDereferenceable.swift
 //  
-//
-//  Created by Alberto Lagos on 11-09-23.
-//
 
 import OpenAPIKitCore
+
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
 import Foundation
+#endif
 
 /// A Swift extension for dereferencing an `OrderedDictionary` conforming to the `LocallyDereferenceable` protocol.
 ///

diff --git a/Sources/OpenAPIKit/XML.swift b/Sources/OpenAPIKit/XML.swift
@@ -3,7 +3,12 @@
 //  
 
 import OpenAPIKitCore
+
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
 import Foundation
+#endif
 
 extension OpenAPI {
     /// OpenAPI Spec "XML Object"

diff --git a/Sources/OpenAPIKit30/Callbacks.swift b/Sources/OpenAPIKit30/Callbacks.swift
@@ -1,12 +1,14 @@
 //
 //  Callback.swift
 //  
-//
-//  Created by Mathew Polzin on 11/1/20.
-//
 
 import OpenAPIKitCore
+
+#if canImport(FoundationEssentials)
+import FoundationEssentials
+#else
 import Foundation
+#endif
 
 extension OpenAPI {
     /// A map from runtime expressions to path items to be used as