External font is not working like Denmark Causten calibri

import RobotoMedium from "../../../../assets/fonts/Roboto/Roboto-Medium.ttf";
import RobotoBold from "../../../../assets/fonts/Roboto/Roboto-Bold.ttf";
import Denmark from "../../../../assets/fonts/Denmark/DENMARK.ttf";
import CaustenExtraBold from "../../../../assets/fonts/Causten/CaustenExtraBold.ttf";
import CalibriBold from "../../../../assets/fonts/calibri/CalibriBold.ttf";
import CalibriRegular from "../../../../assets/fonts/calibri/CalibriRegular.ttf";
Font.register({
family: "Ageo-Regular",
src: RobotoMedium,
fontWeight: 400,
});

Font.register({
family: "Ageo-Bold",
src: RobotoBold,
fontWeight: 700,
});

Font.register({
family: "Denmark",
src: Denmark,
});

Font.register({
family: "CaustenExtraBold",
src: CaustenExtraBold,
});

Font.register({
family: "CalibriBold",
src: CalibriBold,
});

Font.register({
family: "CalibriRegular",
src: CalibriRegular,
});
Font.register({
family: "Ageo-Italic",
src: AgeoItalic,
fontWeight: 400,
});

onst styles = StyleSheet.create({
container: {
width: "100%",
height: window.innerHeight,
},
body: {
paddingTop: 10,
paddingBottom: 130,
paddingHorizontal: 35,
fontSize: 12,
fontFamily: "Ageo-Italic",
},)
in this code apply font is not working only roboto font working
how to any other font add in this code