= [
# prefer hashbrown
"std::collections::HashMap",
"std::collections::HashSet",
# prefer instant crate, it works on wasm
"std::time::Instant",
]
= [
# only allowed in main.rs
"std::print",
"std::println",
# use log crate instead
"std::eprint",
"std::eprintln",
]
= 350