code: function findLambda(identifier) {
    return loadLambdas()
    .then(lambdas => {
      const lambda = _.find(lambdas, (lambda) => { return lambda.getIdentifier() === identifier; });
      if (!lambda) {
        throw new Error('The Lambda "' + identifier + '" does not exists in this Myrmex project');
      }
      return lambda;
    });
  }
docs: Find an Lambda by its identifier
  @param {string} name - the name of the Lambda
  @returns {Array}