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syntax = "proto3";
option cc_enable_arenas = true;
package tensorflow;
// A TensorBundle addition which saves extra information about the objects which
// own variables, allowing for more robust checkpoint loading into modified
// programs.
message CheckpointableObjectGraph {
message CheckpointableObject {
message ObjectReference {
// An index into `CheckpointableObjectGraph.nodes`, indicating the object
// being referenced.
int32 node_id = 1;
// A user-provided name for the edge.
string local_name = 2;
}
message SerializedTensor {
// A name for the Tensor. Simple variables have only one
// `SerializedTensor` named "VARIABLE_VALUE" by convention. This value may
// be restored on object creation as an optimization.
string name = 1;
// The full name of the variable/tensor, if applicable. Used to allow
// name-based loading of checkpoints which were saved using an
// object-based API. Should match the checkpoint key which would have been
// assigned by tf.train.Saver.
string full_name = 2;
// The generated name of the Tensor in the checkpoint.
string checkpoint_key = 3;
}
message SlotVariableReference {
// An index into `CheckpointableObjectGraph.nodes`, indicating the
// variable object this slot was created for.
int32 original_variable_node_id = 1;
// The name of the slot (e.g. "m"/"v").
string slot_name = 2;
// An index into `CheckpointableObjectGraph.nodes`, indicating the
// `Object` with the value of the slot variable.
int32 slot_variable_node_id = 3;
}
// Objects which this object depends on.
repeated ObjectReference children = 1;
// Serialized data specific to this object.
repeated SerializedTensor attributes = 2;
// Slot variables owned by this object.
repeated SlotVariableReference slot_variables = 3;
}
repeated CheckpointableObject nodes = 1;
}
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