anchor.diff:  Configuration options can be provided to Spring Cloud Stream applications through any mechanism supported by Spring Boot.
   This includes application arguments, environment variables, and YAML or .properties files.
   
  -=== Spring Cloud Stream Properties
  +=== Binding Service Properties
  +
  +These properties are exposed via `org.springframework.cloud.stream.config.BindingServiceProperties`
   
   spring.cloud.stream.instanceCount::
   The number of deployed instances of an application.
  
positive.code: 
  ==== Consumer Properties
  
  The following binding properties are available for input bindings only and must be prefixed with `spring.cloud.stream.bindings.<channelName>.consumer.` (for example, `spring.cloud.stream.bindings.input.consumer.concurrency=3`).
  
  Default values can be set by using the `spring.cloud.stream.default.consumer` prefix (for example, `spring.cloud.stream.default.consumer.headerMode=none`).
  
negative.code: Default: `-1`.
  
  ==== Producer Properties
  
  These properties are exposed via `org.springframework.cloud.stream.binder.ProducerProperties`
  
  The following binding properties are available for output bindings only and must be prefixed with `spring.cloud.stream.bindings.<channelName>.producer.` (for example, `spring.cloud.stream.bindings.input.producer.partitionKeyExpression=payload.id`).
  
  