# use

## Function
`use` is used to import fields in the object into the current scope, suitable for deconstructing configuration objects, request contexts or module return objects.

## Syntax
```bt
use object
use object{name, age}
```

## Parameters
- `object`: Object, required
  The object whose fields are to be imported.
- `fields`: Identifier, optional
  Specify the field names to be imported; when the field list is omitted, all fields are imported.

## Example
```bt
user = {name: 'Lisa', age: 18}
use user{name}
println name
```

## Notes
- `use` imports object fields, not file module systems.
- The imported field name will be written into the current scope as a variable name. It must comply with the variable naming rules and cannot start with a capital letter.
- Full import should avoid overwriting important variable names that already exist in the current scope.