Angular v8. Compilation fails when importing the module. Error states: 'Please add a @NgModule annotation'

[PicchiSeba]

Bug Report

• I am running the latest version
• I checked the Readme and found no answer
• I checked to make sure that this issue has not already been filed
• This is related to angular-google-charts and not to Google Charts directly (if it's a Google Charts issue, their forum may help)

Description

When i try to import this module into my project and then try to compile it, I get an error and the compilation fails. The error states that there is an unexpected value in the GoogleChartsModule and that i should add an @NgModule annotation. I am using Angular v8 for this project

To reproduce

Steps to reproduce the behaviour:

1. install the package with npm i angular-google-charts --save
2. go to my app module and include GoogleChartsModule in the imports section
3. compile with ng b
4. See error

Expected behaviour

Should compile flawlessly

Exception or Error

ERROR in Unexpected value 'GoogleChartsModule in MyApp/node_modules/angular-google-charts/lib/google-charts.module.d.ts' imported by the module 'MyModule in MyApp/src/app/modules/mymodule.ts'. Please add a @NgModule annotation.

Your environment

Angular CLI: 8.3.29
Node: 16.16.0
OS: win32 x64
Angular: 8.2.14
... animations, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... platform-server, router

Package                                    Version
--------------------------------------------------------------------
@angular-devkit/architect                  0.803.29
@angular-devkit/build-angular              0.803.29
@angular-devkit/build-optimizer            0.803.29
@angular-devkit/build-webpack              0.803.29
@angular-devkit/core                       8.3.29
@angular-devkit/schematics                 8.3.29
@angular/cdk                               8.2.3
@angular/cli                               8.3.29
@angular/http                              7.2.16
@angular/localize                          9.1.12
@angular/material                          8.2.3
@nguniversal/module-map-ngfactory-loader   v8.2.6
@schematics/angular                        8.3.29
@schematics/update                         0.803.29
rxjs                                       6.6.7
typescript                                 3.5.3
webpack                                    4.39.2