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(internal) Simple export functions for printing Bdds as .dot files.

Functions

Converts the given BDD to a .dot graph string using given variable names.

Write given Bdd into the output buffer as .dot graph. Use var_names to specify custom names for individual variables. If pruned is true, the output will only contain edges leading to the 1 terminal node (this is often much easier to read than the full graph while preserving all the information).