The datatypes command will return all the datatypes found in the current module path. This can be handy if you need to find a datatype to use or know which module it came from.
5:>> datatypes
[
[ 0] "Error",
[ 1] "Stdlib::Compat::Absolute_path",
[ 2] "Stdlib::Compat::Array",
[ 3] "Stdlib::Compat::Bool",
[ 4] "Stdlib::Compat::Float",
[ 5] "Stdlib::Compat::Hash",
[ 6] "Stdlib::Compat::Integer",
[ 7] "Stdlib::Compat::Ip_address",
[ 8] "Stdlib::Compat::Ipv4",
[ 9] "Stdlib::Compat::Ipv6",
[10] "Stdlib::Compat::Numeric",
[11] "Stdlib::Compat::String",
[12] "Stdlib::Ensure::Service",
[13] "Stdlib::Filemode",
[14] "Stdlib::Filesource",
[15] "Stdlib::Fqdn",
[16] "Stdlib::HTTPSUrl"