Import Errors with Post-Workflow Module using "atlas-create-jira-plugin-module"

[Em]

Hello, I'm new to plugin development and am trying to create a post-workflow module that will execute a script (curl command). After using the "atlas-create-jira-plugin-module" command, I'm getting import errors with AbstractDescriptor and FunctionDescriptor and don't know what dependency has them (doesn't contain the option to import class). Similarly, I had to import com.opensymphony.xwork.ActionContext to get ActionContext but the getParameters function (ActionContext.getParameters()) isn't recognized. 

ActionContext's maven dependency:

<dependency>
    <groupId>com.opensymphony</groupId>
    <artifactId>webwork</artifactId>
    <version>2.2.6</version>
</dependency>

Does anyone know what maven dependencies I need to install to get rid of these errors?

Snapshot of the errors:

 

Thank you! :)