<｜begin▁of▁sentence｜>### Instruction:
Given a graph which you can read from 'graph_data.gml', can you estimate the total number of motifs of size 3 in the graph using igraph's motifs_randesu_estimate function? The function should estimate the total number of size 3 motifs without assigning isomorphism classes to them.
### Response:
from igraph import Graph

# Load the graph from 'graph_data.gml'
g = Graph.Read_GML('graph_data.gml')

# Estimate the total number of motifs with size 3 in the graph
total_motifs = g.motifs_randesu_estimate(size=3)

# Print the estimated number of motifs
print('Estimated number of size 3 motifs:', total_motifs)
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