import torch._C._lazy
import torch._C._lazy_ts_backend


def get_tensors_ts_device_data_node(tensors):
    """Return tensor ids and eager tensors for DeviceData nodes in the
    IR for the passed in lazy tensors.

    TODO: This API is currently ts backend specific. We are working on
    generalizing it to all backends including XLA.
    """
    return torch._C._lazy_ts_backend._get_tensors_ts_device_data_node(tensors)


def get_graph_hash(tensors):
    """Return the graph hash for the passed in lazy tensors"""
    return torch._C._lazy._get_graph_hash(tensors)


def run_cached_graph(hash_str, graph_inputs):
    """Running the cached computation graph with the given inputs

    TODO: This API is currently ts backend specific. We are working on
    generalizing it to all backends including XLA.
    """
    return torch._C._lazy_ts_backend._run_cached_graph(hash_str, graph_inputs)