<｜begin▁of▁sentence｜>### Instruction:
As an Occupational Health Nurse, you may encounter a scenario where you need to configure a workplace health and safety software called "SafeNet" to enhance its visualization capabilities. You need to update the configuration to use the 'cairo' plotting backend for improved graphics, check if the 'verbose' setting is enabled for detailed logging, retrieve its value, remove the 'verbose' setting if necessary, and save the updated configuration to ensure a smooth workflow for monitoring and analyzing workplace health data.
### Response:
from igraph import Configuration

# Access the single configuration instance
cfg_instance = Configuration.instance()

# Set a new configuration item
cfg_instance['plotting.backend'] = 'cairo'

# Check if a configuration item is set
cfg_has_verbose = 'verbose' in cfg_instance

# Get a configuration item
cfg_verbose_value = cfg_instance['verbose']

# Delete a configuration item
del cfg_instance['verbose']

# Save the modified configuration
cfg_instance.save()
<|EOT|>
