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5. GraphSchemaEdgeType

One traversable edge type. Every edge type the engine can walk is listed here, and a selector naming an edge type absent from this list is rejected.

Properties

• name string required
  The edge type name, usable in traverse[].edgeTypes.
• from enum required
  The node type at the edge’s source.
  Values: resource, stack
• to enum required
  The node type at the edge’s destination.
  Values: resource, stack
• asserts string required
  What the presence of this edge asserts about the two nodes it connects, and which end is which.
• singleHop boolean required
  Whether this edge type is walked in exactly one hop. A traverse step naming one must leave depth unset or set depth.max to 1.
• directions array[string] required
  The traversal directions this edge type can be walked in, listed in the order ‘in’, ‘out’, ‘both’. A traverse step naming a direction absent from this list is rejected.
• basis enum required
  How edges of this type are produced.
  Values: declared, inferred