enum TokenType {
  ARROBA,
  COLON,
  COMMA,
  DOLLAR,
  ELLIPSIS,
  EQUALS,
  EXCLAMATION,
  LBRACE,
  RBRACE,
  LBRACKET,
  RBRACKET,
  LPAREN,
  RPAREN,

  // Note: these are *not* reserved names.
  // FRAGMENT,
  // MUTATION,
  // SUBSCRIPTION,
  // ON,
  // QUERY,
  // NULL
  // BOOLEAN,

  NUMBER,
  STRING,
  BLOCK_STRING,

  NAME,
}
