anchor.diff:  This operation retrieves only one element from the collection whose _id
   field matches the content of the IN message body. The incoming object
   can be anything that has an equivalent to a `Bson` type. See
  -http://bsonspec.org/#/specification[http://bsonspec.org/#/specification]
  +http://bsonspec.org/spec.html[http://bsonspec.org/spec.html]
   and
   http://www.mongodb.org/display/DOCS/Java+Types[http://www.mongodb.org/display/DOCS/Java+Types].
   
  
positive.code: 
  To configure Change Streams Consumer you need to specify `consumerType`, `database`, `collection`
  and optional JSON property `streamFilter` to filter events.
  That JSON property is standart MongoDB `$match` aggregation.
  It could be easily specified using XML DSL configuration:
  
  [source,xml]
  
negative.code:     .to("mock:resultFindById");
  ------------------------------------------------------------------------------
  
  TIP: *Supports optional parameters*.
  This operation supports specifying a fields filter.
  See <<Specifying a fields filter (projection)>>.
  
  ==== findOneByQuery
  
  