class_docstr: An intermediate representation for DL graph.
code: def get_input(self, node):
      input_nodes = []
      for name in node.input:
          name = get_real_name(name)
          if name in self.node_dict:
              input_nodes.append(self.get_node(name))
      return input_nodes
  
imports: import six
  from six import string_types
  from mmdnn.conversion.caffe.errors import ConversionError
  from mmdnn.conversion.common.IR.graph_pb2 import GraphDef, NodeDef, TensorShape
  from mmdnn.conversion.caffe.utils import get_real_name
label_desc: Use image node_id 6 for calling the Graph obj's underlying member method code with example usage: obj.get_input(node) and returns: input_nodes