code: public List<Discussion> getEpicDiscussions(Object projectIdOrPath, Integer epicId) throws GitLabApiException {
          Pager<Discussion> pager = getEpicDiscussionsPager(projectIdOrPath, epicId, getDefaultPerPage());
          return (pager.all());
      }
docs: Get a list of all discussions for the specified epic.
  
  <pre><code>GitLab Endpoint: GET /projects/:id/epics/:epic_id/discussions</code></pre>
  
  @param projectIdOrPath projectIdOrPath the project in the form of an Integer(ID), String(path), or Project instance
  @param epicId the internal ID of the epic
  @return a list containing all the discussions for the specified epic
  @throws GitLabApiException if any exception occurs during execution