code: public CompletableFuture<Member> getMember(String projectName, User user) {
          requireNonNull(projectName, "projectName");
          requireNonNull(user, "user");
  
          return getProject(projectName).thenApply(
                  project -> project.memberOrDefault(user.id(), null));
      }
docs: Returns a {@link Member} if the specified {@link User} is a member of the specified {@code projectName}.