code: public ServiceFuture<ScheduleInner> getAsync(String resourceGroupName, String automationAccountName, String scheduleName, final ServiceCallback<ScheduleInner> serviceCallback) {
          return ServiceFuture.fromResponse(getWithServiceResponseAsync(resourceGroupName, automationAccountName, scheduleName), serviceCallback);
      }
docs: Retrieve the schedule identified by schedule name.
  
  @param resourceGroupName Name of an Azure Resource group.
  @param automationAccountName The name of the automation account.
  @param scheduleName The schedule name.
  @param serviceCallback the async ServiceCallback to handle successful and failed responses.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @return the {@link ServiceFuture} object