<human>:  Can you show me a Python function for a lower each dict key.
<bot>: Here is a Python function for a lower each dict key

import json

def lower_dict_key(d):
  """
  Lower each key in a dictionary.
  """
  return {k.lower(): v for k, v in list(d.items())}

# Enter the dictionary
d = {"key1": "value1", "key2": "value2"}

# Calling the function
print((lower_dict_key(d)))

#Example Output
# {'key1': 'value1', 'key2': 'value2'}

#Remember to inspect code for bugs.