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# BfsInstance:get(++What, -Value)

Obtain information for the problem associated with BfsInstance.

What
  Specification for information wanted (atom)
Value
  Returned value of What

## Description

Retrieve information about the problem associated with the bfs instance BfsInstance. What can take one of the following values:

`frac_vars`
  Returns the list of variables declared as integer for BfsInstance which have fractional solution values in the current node of the search tree.

`branches`
  Returns the branching decisions taken from the root to the current node of the search tree.

`data`
  Returns the user-defined data associated with the instance.

`node_count`
  Returns the total number of nodes in the search tree.

### Exceptions

(6) out of range
  What is not a valid value.