help? type (in 0.7)

New to Julia
4

I got the same error in v0.6.3:

  | | |_| | | | (_| |  |  Version 0.6.3 (2018-05-28 20:20 UTC)
 _/ |\__'_|_|_|\__'_|  |  Official http://julialang.org/ release
|__/                   |  x86_64-apple-darwin14.5.0

help?> type
ERROR: Invalid @var syntax `incomplete: premature end of input`.

help?> immutable
ERROR: Invalid @var syntax `incomplete: premature end of input`.

don’t know why Julia treats these two statements so special.