<｜begin▁of▁sentence｜>### Instruction:
As a network analyst, you are overseeing the visual representation of a patient care network using the networkx library. Your task is to manipulate the Petersen graph layout by rotating it 45 degrees within the x and y coordinate plane, and then create a visual rendering of the rotated graph to better showcase the connections between different care providers.
### Response:
import igraph as ig

# Load graph from a file
graph = ig.Graph.Famous('petersen')

# Generate a layout for the graph
g_layout = graph.layout('kk')

# Rotate layout by 45 degrees around the origin in the plane defined by dimensions 0 and 1
angle = 45
dim1 = 0
dim2 = 1
g_layout.rotate(angle, dim1, dim2)

# Plot the rotated graph
ig.plot(graph, layout=g_layout, target='rotated_graph.png')
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