Add import, remove return

release_mixin.py

@@ -5,6 +5,7 @@ from version import Version
 from version_repository import VersionRepository
 from services import InitReleaseService, PrepareReleaseService, TagAndPushReleaseService
 from git_repository import GitRepository
+from release_type import ReleaseType
 
 def create_release_mixin_config(config_file, main_branch) -> dict:
     config = {}
@@ -35,7 +36,6 @@ class ReleaseMixin(DevopsBuild):
         init_service = InitReleaseService(self.version_repo)
         self.release_version = init_service.create_release_version()
         self.bump_version = self.release_version.create_bump_version()
-        return self.release_version, self.bump_version
 
     def prepare(self, version):
         git_repository = GitRepository()