Enums The following enums are available globally. GraphError Errors related to the Graph protocol. .VertexAlreadyPresent: Error due to a vertex already being in the graph. .VertexNotPresent: Error due to a vertex not being in the graph. .EdgeNotPresent: Error due to an edge not being in the graph. See more Declaration Swift public enum GraphError: ErrorType HeapError Errors for binary heaps. Currently only the case where increasePriority is a priority decrease. See more Declaration Swift public enum HeapError: ErrorType © 2015 . All rights reserved. (Last updated: 2015-12-26) Generated by jazzy ♪♫ v0.4.1, a Realm project.