lib/plugins/aws/deployList/index.js/AwsDeployList/getFunctions
class AwsDeployList:  getFunctions() {
    const funcs = this.serverless.service.getAllFunctionsNames();

    return BbPromise.map(funcs, funcName => {
      const params = {
        FunctionName: funcName,
      };

      return this.provider.request('Lambda', 'getFunction', params);
    }).then(result => _.map(result, item => item.Configuration));
  }