<｜begin▁of▁sentence｜>### Instruction:
Given a graph with nodes that have a 'pos' attribute representing their 2D coordinates (for example, node 0 at (0, 0), node 1 at (3, 0), and node 2 at (8, 0)), how can you find all the edges in this graph where the nodes are within a radius of 4 or 6 units from each other using NetworkX?
### Response:
import networkx as nx

# Create a graph
G = nx.Graph()
# Add nodes with position attributes
G.add_nodes_from([
    (0, {'pos': (0, 0)}),
    (1, {'pos': (3, 0)}),
    (2, {'pos': (8, 0)}),
])
# Use geometric_edges to find edges within a certain radius
edges_within_radius_4 = nx.geometric_edges(G, radius=4)
print('Edges within radius 4:', edges_within_radius_4)

edges_within_radius_6 = nx.geometric_edges(G, radius=6)
print('Edges within radius 6:', edges_within_radius_6)
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