<｜begin▁of▁sentence｜>### Instruction:
As a sound engineer working on a film production, you have been tasked with analyzing the audio collaboration network within the film industry in 2005 to identify key groups of collaborators. You have access to a GML file named "cond-mat-2005.gml," which contains the network data. Your goal is to use the CPM community detection algorithm with a resolution parameter of 0.3 in a tool like cdlib to detect the communities within the network. Furthermore, you need to compute the internal edge density of the identified communities to gain insights into the strength of collaboration within each group.
### Response:
import networkx as nx
from cdlib import algorithms

# Read the graph
G = nx.read_gml('cond-mat-2005.gml')

# Apply the CPM community detection algorithm
communities = algorithms.cpm(G, resolution_parameter=0.3)

internal_edge_density = communities.internal_edge_density()

print('The internal edge density of the communities:', internal_edge_density)
<|EOT|>
