The impute functionality has been extended with the MICE method thanks to @Ananyapam7 (issue #81).
In addition, I also added functionality to impute missing categorical values.

Key features include:

• Supports K-NN imputation for numeric columns.
• Supports MICE imputation for numeric columns.
• Numeric columns are auto-identified and converted for imputation where necessary.
• Includes options to specify the imputation estimator, number of iterations (max_iter), and verbosity level for logging.
• String/categorical columns are imputed.

Created a new file impute.py for imputation related functions.
See examples and more information in the documentation pages.