Fix warnings

LineSDK/LineSDK/Messaging/Model/Actions/MessageAction.swift

@@ -71,7 +71,7 @@ public enum MessageAction: Codable, MessageActionConvertible {
 }
 
 public struct MessageURIAction: Codable, TemplateMessageActionTypeCompatible, MessageActionConvertible {
-    let type = MessageActionType.URI
+    private(set) var type = MessageActionType.URI
     public let label: String?
     public let uri: URL
 

LineSDK/LineSDK/Messaging/Model/Flex/Component/FlexBoxComponent.swift

@@ -24,7 +24,7 @@
 /// A box component behave as a container of other components. It defines the layout of its child components.
 /// You can also include a nested box in a box.
 public struct FlexBoxComponent: Codable, FlexMessageComponentTypeCompatible, MessageActionContainer {
-    let type: FlexMessageComponentType = .box
+    private(set) var type: FlexMessageComponentType = .box
 
     /// The placement style of components in this box.
     public let layout: FlexMessageComponent.Layout

LineSDK/LineSDK/Messaging/Model/Flex/Component/FlexButtonComponent.swift

@@ -45,7 +45,7 @@ public struct FlexButtonComponent: Codable, FlexMessageComponentTypeCompatible {
         public static let defaultCase: FlexButtonComponent.Style = .link
     }
 
-    let type = FlexMessageComponentType.button
+    private(set) var type = FlexMessageComponentType.button
 
     /// An action to perform when the button tapped.
     /// Use `setAction` method if you want to set a `MessageActionConvertible` as the action of current component.

LineSDK/LineSDK/Messaging/Model/Flex/Component/FlexFillerComponent.swift

@@ -23,7 +23,7 @@
 /// Represents an invisible component to fill extra space between components.
 /// The filler's `flex` is fixed to 1. The `spacing` property of the parent box will be ignored for fillers.
 public struct FlexFillerComponent: Codable, FlexMessageComponentTypeCompatible {
-    let type: FlexMessageComponentType = .filler
+    private(set) var type: FlexMessageComponentType = .filler
 
     /// Creates a filler component.
     public init() {}

LineSDK/LineSDK/Messaging/Model/Flex/Component/FlexIconComponent.swift

@@ -24,7 +24,7 @@ import Foundation
 /// LINE internal use only.
 /// Represents an icon component. It is used to embed into a baseline layout and its flex is fixed to 0.
 public struct FlexIconComponent: Codable, FlexMessageComponentTypeCompatible {
-    let type: FlexMessageComponentType = .icon
+    private(set) var type: FlexMessageComponentType = .icon
 
     /// Icon URL. It should start with "https".
     public let url: URL

LineSDK/LineSDK/Messaging/Model/Flex/Component/FlexSeparatorComponent.swift

@@ -24,7 +24,7 @@
 /// Different from the `separator` property of `FlexBlockStyle`, the `FlexSeparatorComponent` allows you to add a
 /// separator between components instead of container block, as well as full control on separator `margin`.
 public struct FlexSeparatorComponent: Codable, FlexMessageComponentTypeCompatible {
-    let type: FlexMessageComponentType = .separator
+    private(set) var type: FlexMessageComponentType = .separator
 
     /// Minimum space between this component and the previous component in the parent box.
     /// If not specified, the `spacing` of parent box will be used.

LineSDK/LineSDK/Messaging/Model/Flex/Component/FlexSpacerComponent.swift

@@ -23,7 +23,7 @@
 /// Represents some spacing in a box component.
 /// This is an invisible component that places a fixed-size space at the beginning or end of the box.
 public struct FlexSpacerComponent: Codable, FlexMessageComponentTypeCompatible {
-    let type: FlexMessageComponentType = .spacer
+    private(set) var type: FlexMessageComponentType = .spacer
 
     /// Size of the space.
     /// You can specify one from: `[.xs, .sm, .md, .lg, .xl, .xxl]`.

LineSDK/LineSDK/Messaging/Model/Flex/Container/FlexBubbleContainer.swift

@@ -61,7 +61,7 @@ public struct FlexBubbleContainer: Codable, FlexMessageContainerTypeCompatible {
         public static let defaultCase: Direction = .leftToRight
     }
 
-    let type = FlexMessageContainerType.bubble
+    private(set) var type = FlexMessageContainerType.bubble
 
     /// The header block. Header section of the bubble. This block is a `FlexBoxComponent` and could contains
     /// arbitrary nested components.

LineSDK/LineSDK/Messaging/Model/Flex/Container/FlexCarouselContainer.swift

@@ -24,7 +24,7 @@
 /// scrolling horizontally.
 ///
 public struct FlexCarouselContainer: Codable, FlexMessageContainerTypeCompatible {
-    let type = FlexMessageContainerType.carousel
+    private(set) var type = FlexMessageContainerType.carousel
 
     /// Array of `FlexBubbleContainer`s. You could set at most 10 bubble container in this carousel container.
     /// Line SDK does not check the elements count in a container. However, it would cause an API response error

LineSDK/LineSDK/Messaging/Model/FlexMessage.swift

@@ -29,7 +29,7 @@
 ///
 /// For more information, see https://developers.line.biz/en/docs/messaging-api/message-types/#flex-messages .
 public struct FlexMessage: Codable, MessageTypeCompatible {
-    let type = MessageType.flex
+    private(set) var type = MessageType.flex
 
     /// An alternate text to show in LINE push notification or chat preview.
     public var altText: String

LineSDK/LineSDK/Messaging/Model/LocationMessage.swift

@@ -26,7 +26,7 @@ public struct LocationMessage: Codable, MessageTypeCompatible {
     /// Represents a location latitude or longitude degrees.
     public typealias LocationDegrees = Double
 
-    let type = MessageType.location
+    private(set) var type = MessageType.location
 
     /// Title name of the location.
     public var title: String

LineSDK/LineSDK/Messaging/Model/Template/Payloads/TemplateConfirmPayload.swift

@@ -23,7 +23,7 @@
 /// Represents a template payload with a text and two action button.
 /// Use this template if you want users to answer between "Yes" or "No".
 public struct TemplateConfirmPayload: Codable, TemplateMessagePayloadTypeCompatible {
-    let type = TemplateMessagePayloadType.confirm
+    private(set) var type = TemplateMessagePayloadType.confirm
 
     /// Message text in the chat bubble.
     public var text: String

LineSDK/LineSDK/Messaging/Model/Template/Payloads/TemplateImageCarouselPayload.swift

@@ -55,7 +55,7 @@ public struct TemplateImageCarouselPayload: Codable, TemplateMessagePayloadTypeC
         }
     }
 
-    let type = TemplateMessagePayloadType.imageCarousel
+    private(set) var type = TemplateMessagePayloadType.imageCarousel
 
     /// Array of columns. You could set at most 10 columns in the payload. Line SDK does not check the elements count
     /// in a payload. However, it would cause an API response error if more columns contained in the payload.