code: def elu(data):
      return mx.nd.LeakyReLU(data, act_type="elu")
  
file_path: dgl/examples/mxnet/gat/train.py
imports: import argparse
  import time
  import dgl
  import mxnet
  import networkx
  import numpy
  from dgl.data import CiteseerGraphDataset, CoraGraphDataset, PubmedGraphDataset, register_data_args
  from gat import GAT
  from mxnet import gluon
  from utils import EarlyStopping
label_desc: Use image node_id 1 for calling a global function with example usage: elu(data) and returns: mx