PSoC Creator includes examples for BLE HID Keyboard and HID Mouse. I don't think there are examples of a client connecting to these devices.
As yssu said, I don't think there are Client examples of the scenario you are asking about. I have seen peripheral examples and posts that mimic the keyboard. Related thread with information/posts on implementing HID over BLE from a peripheral standpoint: BLE Keyboard and Mouse HID on the same device