Function IsIdentity

tensorflow/core/graph/graph.h:878–878

inline bool IsConstant(const Node* node) { return node->IsConstant(); }
inline bool IsVariable(const Node* node) { return node->IsVariable(); }
inline bool IsIdentity(const Node* node) { return node->IsIdentity(); }

// Returns true iff 'n' is a control flow node.
inline bool IsControlFlow(const Node* n) { return n->IsControlFlow(); }