async def METHOD_NAME(request: web.Request):
    """Send mediate-request message to agent with specified connection id."""
    body = await request.json()
    connection_id: str = body.get("id")
    backchannel: "AcaPyAgentBackchannel" = request["backchannel"]
    (resp_status, resp_text) = await backchannel.admin_POST(
        f"/mediation/request/{connection_id}", {}
    )
    if resp_status != 201:
        return web.Response(text=resp_text, status=resp_status)
    resp_json = json.loads(resp_text)
    return web.json_response(mediation_record_to_response(resp_json))