feat(types): add types for #1518 (FaCC)

types/index.d.ts

@@ -9,7 +9,7 @@
  *
  * If you are seeing this from the future, please, send us your cutting-edge technology :) (if it exists)
  */
-import { Component } from 'react';
+import { Component, ReactNode } from 'react';
 import { ViewProperties } from "react-native";
 
 type AutoFocus = { on: any, off: any };
@@ -23,8 +23,17 @@ type VideoCodec = { 'H264': symbol, 'JPEG': symbol, 'HVEC': symbol, 'AppleProRes
 type FaceDetectionClassifications = { all: any, none: any };
 type FaceDetectionLandmarks = { all: any, none: any };
 type FaceDetectionMode = { fast: any, accurate: any };
-type GoogleVisionBarcodeType = { CODE_128: any, CODE_39: any, CODABAR: any, DATA_MATRIX: any, EAN_13: any, EAN_8: any, ITF: any,
-    QR_CODE: any, UPC_A: any, UPC_E: any, PDF417: any, AZTEC: any }
+type GoogleVisionBarcodeType = {
+    CODE_128: any, CODE_39: any, CODABAR: any, DATA_MATRIX: any, EAN_13: any, EAN_8: any,
+    ITF: any, QR_CODE: any, UPC_A: any, UPC_E: any, PDF417: any, AZTEC: any
+};
+
+// FaCC (Function as Child Components)
+type CameraStatus = 'READY' | 'PENDING_AUTHORIZATION' | 'NOT_AUTHORIZED';
+type FaCC = (params: {
+    camera: RNCamera,
+    status: CameraStatus
+}) => JSX.Element;
 
 export interface Constants {
     AutoFocus: AutoFocus;
@@ -45,6 +54,8 @@ export interface Constants {
 }
 
 export interface RNCameraProps {
+    children?: ReactNode | FaCC;
+
     autoFocus?: keyof AutoFocus;
     type?: keyof CameraType;
     flashMode?: keyof FlashMode;