Network Analysis Tool:

Design a Python script to analyze network traffic logs$.$ The script should read a log file containing records of network connections, each with source and destination IP addresses, timestamps, and data sizes. Your script should:

Calculate the total data transferred per unique source IP address.

Identify the top N $($configurable$)$ IP addresses with the highest data transfer.

Determine the average data transfer rate per unique source IP address.

Provide an option to filter records based on time range and$/$or IP address.

Ensure your solution is efficient and can handle large log files efficiently.