code: public Project createProject(Integer groupId, String projectName) throws GitLabApiException {
          GitLabApiForm formData = new GitLabApiForm().withParam("namespace_id", groupId).withParam("name", projectName, true);
          Response response = post(Response.Status.CREATED, formData, "projects");
          return (response.readEntity(Project.class));
      }
docs: Create a new project in the specified group.
  
  @param groupId the group ID to create the project under
  @param projectName the name of the project top create
  @return the created project
  @throws GitLabApiException if any exception occurs