def create_connection
      @connection = Faraday.new(url: @api_host) do |builder|
        block_given? ? yield(builder) : Client.build_default_connection(builder)
      end
    end
def create_connection
      @connection = Faraday.new(url: @api_host) do |builder|
        block_given? ? yield(builder) : Client.build_default_connection(builder)
      end
    end
Internal: Initializes a new Plaid connection object via Faraday.

 Optionally takes a block to allow overriding the defaults.