How to use the @nrwl/workspace.updateJsonFile function in @nrwl/workspace

run: () => {
    updateJsonFile('tslint.json', json => {
      const ruleName = 'nx-enforce-module-boundaries';
      const rule = ruleName in json.rules ? json.rules[ruleName] : null;

      // Only modify when the rule is configured with optional arguments
      if (
        Array.isArray(rule) &&
        typeof rule[1] === 'object' &&
        rule[1] !== null
      ) {
        rule[1].npmScope = undefined;
      }
    });
  }
};

run: () => {
    if (!existsSync('.angular-cli.json') && existsSync('angular.json')) {
      console.warn(stripIndents`
        You have already upgraded to Angular CLI 6.
        We will not be able to recover information about your project's tags for you.
      `);
      return;
    }

    updateJsonFile('package.json', json => {
      json.devDependencies['@angular/cli'] = '6.1.2';
    });

    updateJsonFile('package.json', json => {
      delete json.scripts.postinstall;
    });

    try {
      if (existsSync('yarn.lock')) {
        execSync('yarn install', { stdio: [0, 1, 2] });
      } else {
        execSync('npm install', { stdio: [0, 1, 2] });
      }

      execSync(
        'ng update @angular/cli --from 1.7.4 --to 6.0.1 --migrate-only',
        {
          stdio: [0, 1, 2]
        }
      );

run: () => {
    updateJsonFile('package.json', json => {
      json.dependencies = {
        ...json.dependencies,
        '@angular/animations': '^5.2.0',
        '@angular/common': '^5.2.0',
        '@angular/compiler': '^5.2.0',
        '@angular/core': '^5.2.0',
        '@angular/forms': '^5.2.0',
        '@angular/platform-browser': '^5.2.0',
        '@angular/platform-browser-dynamic': '^5.2.0',
        '@angular/router': '^5.2.0',
        'core-js': '^2.4.1',
        rxjs: '^5.5.6',
        'zone.js': '^0.8.19',
        '@ngrx/effects': '4.1.1',
        '@ngrx/router-store': '4.1.1',
        '@ngrx/store': '4.1.1'

run: () => {
    updateJsonFile('package.json', json => {
      json.scripts = {
        ...json.scripts,
        'apps:affected':
          'node ./node_modules/@nrwl/schematics/src/affected/run-affected.js apps',
        'build:affected':
          'node ./node_modules/@nrwl/schematics/src/affected/run-affected.js build',
        'e2e:affected':
          'node ./node_modules/@nrwl/schematics/src/affected/run-affected.js e2e'
      };
    });
  }
};

run: () => {
    updateJsonFile('package.json', json => {
      json.devDependencies = {
        ...json.devDependencies,
        ['@angular-devkit/core']: '^0.0.29'
      };
    });
  }
};

run: async () => {
    updateJsonFile('.angular-cli.json', json => {
      json.apps = json.apps.map(app => ({ ...app, tags: [] }));
    });

    updateJsonFile('tslint.json', json => {
      if (json.rules['nx-enforce-module-boundaries']) {
        json.rules['nx-enforce-module-boundaries'][1].depConstraints = [
          { sourceTag: '*', onlyDependOnLibsWithTags: ['*'] }
        ];
        json.rules['nx-enforce-module-boundaries'][1].lazyLoad = undefined;
      }
    });
  }
};

run: () => {
    updateJsonFile('package.json', json => {
      json.scripts = {
        ...json.scripts,

        'apps:affected': './node_modules/.bin/nx affected apps',
        'build:affected': './node_modules/.bin/nx affected build',
        'e2e:affected': './node_modules/.bin/nx affected e2e',

        'affected:apps': './node_modules/.bin/nx affected apps',
        'affected:build': './node_modules/.bin/nx affected build',
        'affected:e2e': './node_modules/.bin/nx affected e2e',

        format: './node_modules/.bin/nx format write',
        'format:write': './node_modules/.bin/nx format write',
        'format:check': './node_modules/.bin/nx format check',

        'nx-migrate': './node_modules/.bin/nx migrate'

run: () => {
    updateJsonFile('package.json', json => {
      json.scripts = {
        ...json.scripts,
        'affected:apps': './node_modules/.bin/nx affected:apps',
        'affected:build': './node_modules/.bin/nx affected:build',
        'affected:e2e': './node_modules/.bin/nx affected:e2e',
        'affected:dep-graph': './node_modules/.bin/nx affected:dep-graph',
        format: './node_modules/.bin/nx format:write',
        'format:write': './node_modules/.bin/nx format:write',
        'format:check': './node_modules/.bin/nx format:check',
        update: './node_modules/.bin/nx update',
        'update:check': './node_modules/.bin/nx update:check',
        'update:skip': './node_modules/.bin/nx update:skip',
        'workspace-schematic': './node_modules/.bin/nx workspace-schematic',
        'dep-graph': './node_modules/.bin/nx dep-graph',
        help: './node_modules/.bin/nx help'
      };

function cleanUpExistingConfig(resolvedExisting: ExistingPrettierConfig): void {
  switch (resolvedExisting.sourceFilepath) {
    case join(process.cwd(), 'package.json'):
      return updateJsonFile('package.json', json => {
        delete json.prettier;
      });
    default:
      return unlinkSync(resolvedExisting.sourceFilepath);
  }
}

json.devDependencies = {
        ...json.devDependencies,
        '@angular/cli': 'file:.angular_cli165.tgz',
        '@angular/compiler-cli': '^5.2.0',
        '@angular/language-service': '^5.2.0',
        'jasmine-core': '~2.8.0',
        'jasmine-spec-reporter': '~4.2.1',
        karma: '~2.0.0',
        'karma-chrome-launcher': '~2.2.0',
        'ts-node': '~4.1.0',
        tslint: '~5.9.1',
        typescript: '2.6.2'
      };
    });

    updateJsonFile('tslint.json', json => {
      json.rules['deprecation'] = { severity: 'warn' };
      json.rules['typeof-compare'] = undefined;
      json.rules['whitespace'] = undefined;
    });

    copyFile(
      path.join(
        __dirname,
        '..',
        'src',
        'collection',
        'application',
        'files',
        '__directory__',
        '.angular_cli165.tgz'
      ),