def headers
      {
        'X-EBAY-API-COMPATIBILITY-LEVEL' => @compatability_level.to_s,
        'X-EBAY-API-DEV-NAME' => dev_id.to_s,
        'X-EBAY-API-APP-NAME' => app_id.to_s,
        'X-EBAY-API-CERT-NAME' => cert_id.to_s,
        'X-EBAY-API-CALL-NAME' => @command.to_s,
        'X-EBAY-API-SITEID' => @site_id.to_s,
        'Content-Type' => 'text/xml'
      }
    end
def headers
      {
        'X-EBAY-API-COMPATIBILITY-LEVEL' => @compatability_level.to_s,
        'X-EBAY-API-DEV-NAME' => dev_id.to_s,
        'X-EBAY-API-APP-NAME' => app_id.to_s,
        'X-EBAY-API-CERT-NAME' => cert_id.to_s,
        'X-EBAY-API-CALL-NAME' => @command.to_s,
        'X-EBAY-API-SITEID' => @site_id.to_s,
        'Content-Type' => 'text/xml'
      }
    end
Gets the headers that will be sent with this request.