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navigationOptions: ({ navigation }) => {      
  const { routeName, routes } = navigation.state;      
  return {        
    tabBarIcon: ({ focused, tintColor }) => {          
       // You can return any component that you like here! 
       // We usually create an icon component rendering some svg        
       return <Icon type={routeName} focused={focused} />;       
    }
  }
}

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import React from "react";
const App = () => (
  <div>Hello World!!!</div>
);
export default App;

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Application Engine Dashboard

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describe('change and blur events', () => {
    const noop = () => {};
    describe('handleCahange and handleBlur events', () => {
      beforeAll(() => {
        wrapper = mount(
          <FormikEnhancedSessionForm
            fields={{
              nationalId: '',
              mobileNumber: '',
              channel: '',

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import React from 'react';
import Button from '@components/Button';
import PropTypes from 'prop-types';
import { translate } from 'react-i18next';
import { SessionFormFields, SessionFormSubmitButton } from './FormFields';

import { createSessionApi } from '@src/apis/api';
import { Routes as RouteConstants } from '@src/constants/routes';
import { api } from '@helpers/ApiLibrary';
import { storage } from '@helpers/Storage';

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import { util } from '../helpers/utils';

describe('test cases for the exported util object', () => {
  test('exported object to be defined', () => {
    expect(util).toBeDefined();
  });
  test('util should be an object', () => {
    expect(typeof util).toBe('object');
  });
});

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export function fullName(firstName, lastName, callback) {
  callback(`${firstName} ${lastName}`);
}

export function promiseExample() {
  return new Promise((resolve, reject) => {
    setTimeout(() => {
      resolve(true);
    }, 100);
  });

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IN

export default class HelloWorld extends React.Component {
  render() {
    const {
      className,
    } = this.props;

    return (
 

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/**
   * This function will check if a particular hmac(hash) coming from the url and one generted with lead is same or not
   * This is to make sure that the url can not be tampered with
   * @param {String} identity This is either the lead_id or mobileNo
   * @param {String} hash This is the generted hash in the url
   * It will return true or false based on if the hmac's match or not
   */
  checkHash(identity, clientCode, hash) {
    const generatedHash = crypto
      .createHmac('sha1', hmacSalt)