Breakends and positions

[ahwagner]

One concept that will need to be considered as we approach fusion & SV representation is the notion of a breakend, a position on a sequence representing some indefinite amount of sequence to the left or right of the position.

The position is contrasted from an interval by having a single Number/Range value instead of both a start and end Number/Range value.

[cmprocknow]

I think we can represent this already using IndefiniteRange, right?:

{
	"interval": {
		"end": {
			"type": "Number",
			"value": 44908822
		},
		"start": {
			"type": "Number",
			"value": 44908821
		},
		"type": "SequenceInterval"
},
	"sequence_id": "ga4gh:SQ.IIB53T8CNeJJdUqzn9V_JnRtQadwWCbl",
	"type": "SequenceLocation"
}

[github-actions]

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