[Client] add setPushers

Took 15 minutes

lib/src/Client.dart

@@ -23,6 +23,7 @@
 
 import 'dart:async';
 import 'dart:core';
+import 'requests/SetPushersRequest.dart';
 import 'responses/ErrorResponse.dart';
 import 'Connection.dart';
 import 'RoomList.dart';
@@ -246,4 +247,20 @@ class Client {
 
     return PushrulesResponse.fromJson(resp);
   }
+
+  /// This endpoint allows the creation, modification and deletion of pushers for this user ID.
+  Future setPushers(SetPushersRequest data) async {
+    final dynamic resp = await connection.jsonRequest(
+      type: "POST",
+      action: "/client/r0/pushers/set",
+      data: data,
+    );
+
+    if (resp is ErrorResponse) {
+      connection.onError.add(resp);
+      return null;
+    }
+
+    return null;
+  }
 }

lib/src/requests/SetPushersRequest.dart

@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2019 Zender & Kurtz GbR.
+ *
+ * Authors:
+ *   Christian Pauly <krille@famedly.com>
+ *   Marcel Radzio <mtrnord@famedly.com>
+ *
+ * This file is part of famedlysdk.
+ *
+ * famedlysdk is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * famedlysdk is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with famedly.  If not, see <http://www.gnu.org/licenses/>.
+ */
+import 'package:json_annotation/json_annotation.dart';
+
+part 'SetPushersRequest.g.dart';
+
+@JsonSerializable(explicitToJson: true, nullable: false)
+class SetPushersRequest {
+  // Required Keys
+  @JsonKey(nullable: false)
+  String lang;
+  @JsonKey(nullable: false)
+  String device_display_name;
+  @JsonKey(nullable: false)
+  String app_display_name;
+  @JsonKey(nullable: false)
+  String app_id;
+  @JsonKey(nullable: false)
+  String kind;
+  @JsonKey(nullable: false)
+  String pushkey;
+  @JsonKey(nullable: false)
+  PusherData data;
+
+  // Optional keys
+  String profile_tag;
+  bool append;
+
+  SetPushersRequest({
+    this.lang,
+    this.device_display_name,
+    this.app_display_name,
+    this.app_id,
+    this.kind,
+    this.pushkey,
+    this.data,
+    this.profile_tag,
+    this.append,
+  });
+
+  factory SetPushersRequest.fromJson(Map<String, dynamic> json) =>
+      _$SetPushersRequestFromJson(json);
+
+  Map<String, dynamic> toJson() => _$SetPushersRequestToJson(this);
+}
+
+@JsonSerializable(explicitToJson: true, nullable: false)
+class PusherData {
+  String url;
+  String format;
+
+  PusherData({
+    this.url,
+    this.format,
+  });
+
+  factory PusherData.fromJson(Map<String, dynamic> json) =>
+      _$PusherDataFromJson(json);
+
+  Map<String, dynamic> toJson() => _$PusherDataToJson(this);
+}

lib/src/requests/SetPushersRequest.g.dart

@@ -0,0 +1,41 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'SetPushersRequest.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+SetPushersRequest _$SetPushersRequestFromJson(Map<String, dynamic> json) {
+  return SetPushersRequest(
+      lang: json['lang'] as String,
+      device_display_name: json['device_display_name'] as String,
+      app_display_name: json['app_display_name'] as String,
+      app_id: json['app_id'] as String,
+      kind: json['kind'] as String,
+      pushkey: json['pushkey'] as String,
+      data: PusherData.fromJson(json['data'] as Map<String, dynamic>),
+      profile_tag: json['profile_tag'] as String,
+      append: json['append'] as bool);
+}
+
+Map<String, dynamic> _$SetPushersRequestToJson(SetPushersRequest instance) =>
+    <String, dynamic>{
+      'lang': instance.lang,
+      'device_display_name': instance.device_display_name,
+      'app_display_name': instance.app_display_name,
+      'app_id': instance.app_id,
+      'kind': instance.kind,
+      'pushkey': instance.pushkey,
+      'data': instance.data.toJson(),
+      'profile_tag': instance.profile_tag,
+      'append': instance.append
+    };
+
+PusherData _$PusherDataFromJson(Map<String, dynamic> json) {
+  return PusherData(
+      url: json['url'] as String, format: json['format'] as String);
+}
+
+Map<String, dynamic> _$PusherDataToJson(PusherData instance) =>
+    <String, dynamic>{'url': instance.url, 'format': instance.format};