human
dictionary get case insensistive key.
assistant
Here is a Python program to create a dictionary with a case-insensistive key

import collections

def get_case_insensitive_key(dictionary, key):
    """Get case insensitive key."""
    return dictionary.get(key.lower())

# Enter the dictionary
d = collections.OrderedDict()

# Add some items to the dictionary
d['a'] = 1
d['b'] = 2
d['c'] = 3

# Calling the function
print((get_case_insensitive_key(d, 'a')))

# Printing the dictionary
print(d)

#Example Output
# 1
# OrderedDict([('a', 1), ('b', 2), ('c', 3)])

#Remember to inspect code for bugs.