set
Adds the specified indent for sequence indicator in the block flow. Default is 0.
For better visual results it should be by 2 less than the indent (which is 2 by default). It is 2 chars less because the first char is - and the second char is the space after it.
Return
the builder with the provided value
Parameters
indicator
must be non-negative and less than org.snakeyaml.engine.v2.emitter.Emitter.MAX_INDENT - 1