Modules let you split code across files and control which functions are part of the public API. In Tea, you import modules with `use alias from "path"` and call exported members through that alias.
## Export from a local file
Mark exported definitions with `pub`. Anything without `pub` stays private to that module, which keeps internal helpers out of the external surface.
```tea
pub def triple(value: Int) -> Int
return value * 3
end
def internal_label() -> String
return "helpers"
end
```
## Import it from another file
Relative imports point to nearby Tea files. Bind the import to an alias, then access exported members through that name.
```tea
use helpers from "./helpers"
@println(helpers.triple(5))
```
Checked-in examples use imports like use args from "std.args",{" "}
use fs from "std.fs", and use regex from "std.regex". Each
stdlib module exposes its public API from a mod.tea entrypoint.