<｜begin▁of▁sentence｜>### Instruction:
As an architect, you are tasked with designing a complete playground with five play areas, each with a unique design and set of equipment. To achieve this, you need to use a specialized software program, PlaygroundDesignPro, to create a custom JSON encoder and stream the design data to a JSON file for analysis and further development.
### Response:
from gephistreamer import GephiGraphStreamer
import networkx as nx
import json

# Define a custom JSON encoder
class CustomEncoder(json.JSONEncoder):
    def default(self, obj):
        # Implement encoding logic here
        return super(CustomEncoder, self).default(obj)

# Initialize a graph in NetworkX
g_nx = nx.complete_graph(5)

# Initialize GephiGraphStreamer with a file object
g_streamer = GephiGraphStreamer.GephiGraphStreamer(open('graph_stream.json', 'w'), encoder=CustomEncoder())

# Stream the NetworkX graph to the JSON file (you would need to implement the method to stream)
# g_streamer.stream(g_nx)
<|EOT|>
