connect to WebSocket server in .NET

rule:
  meta:
    name: connect to WebSocket server in .NET
    namespace: communication/websocket/client
    authors:
      - mehunhoff@google.com
    scopes:
      static: function
      dynamic: span of calls
  features:
    - and:
      - api: System.Net.WebSockets.ClientWebSocket::ConnectAsync
      - optional:
        - api: System.Net.WebSockets.ClientWebSocket::ctor