How to use the react-native-image-marker.markText function in react-native-image-marker

markerScale: 1,
        quality: 100,
        saveFormat: this.state.saveFormat
      }).then((path) => {
        this.setState({
          uri: this.state.saveFormat === ImageFormat.base64 ? path : Platform.OS === 'android' ? 'file://' + path : path,
          show: true,
          loading: false
        })
      }).catch((err) => {
        console.log('====================================')
        console.log(err, 'err')
        console.log('====================================')
      })
    } else {
      Marker.markText({
        src: this.state.image,
        text: `text marker
         muiltline text`,
        position: type,
        color: '#FF0000',
        fontName: 'Arial-BoldItalicMT',
        fontSize: 44,
        scale: 1,
        quality: 100,
        shadowStyle: this.state.useTextShadow ? {
          dx: 10.5,
          dy: 20.8,
          radius: 20.9,
          color: '#0000FF'
        } : null,
        textBackgroundStyle: this.state.useTextBgStyle ? {