text: 
  DEFAULT_SERVER = "http://localhost:54321/"
  
  
  
  KEY = "Key"
  ERROR = "Error"
  COLUMNS = "columns"
  COLUMN_NAME = "name"
  CONTENTS = "contents"
  EXPR = "Expr"
  RESULT_KEY = "ResultKey"
  VALUE = "Value"
  URL = "Url"
  
  PAGE_EXEC = "Exec.json"
  PAGE_IMPORTURL = "ImportUrl.json"
  PAGE_REMOVE = "Remove.json"
  PAGE_INSPECT = "Inspect.json"
  