GraphOps

addNode

delNode

getNode

lookupNode

modNode

size

union

addConflict

delConflict

addConflicts

addCoalesce

delCoalesce

addExclusion

addExclusions

addPreference

coalesceNodes

coalesceGraph

freezeNode

freezeOneInGraph

freezeAllInGraph

scanGraph

setColor

validateGraph

slurpNodeConflictCount