Include/Import in .scss

[DeveloperFromUkraine]

Need help, may be some one know how it work correct. I've got some styles.scss file where got

@import '../../node_modules/material/themes';
@include mat-core();
@include angular-material-typography($some-custom-typografy)

Please give me answers, how should my BUILD.bazel look like? I don't find how I must write rules here.