code: func (api *Client) GetIMChannelsContext(ctx context.Context) ([]IM, error) {
  	values := url.Values{
  		"token": {api.token},
  	}
  
  	response, err := api.imRequest(ctx, "im.list", values)
  	if err != nil {
  		return nil, err
  	}
  	return response.IMs, nil
  }
docs: // GetIMChannelsContext returns the list of direct message channels with a custom context