Generated python docs incorrectly adds underscore to prop

### Describe the bug

The generated Python docs incorrectly shows `memory_limit_mi_b` as the property when there should be no underscore in `mi_b`. [Seen here](https://docs.aws.amazon.com/cdk/api/v2/python/aws_cdk.aws_ecs_patterns/ApplicationLoadBalancedFargateService.html)

This is likely because Python is detecting the capital B as a new "word"

### Expected Behavior

docs show `memory_limit_mib`

### Current Behavior

docs show `memory_limit_mi_b`

### Reproduction Steps

https://docs.aws.amazon.com/cdk/api/v2/python/aws_cdk.aws_ecs_patterns/ApplicationLoadBalancedFargateService.html
https://docs.aws.amazon.com/cdk/api/v2/python/aws_cdk.aws_ecs_patterns/ApplicationLoadBalancedFargateServiceProps.html

### Possible Solution

_No response_

### Additional Information/Context

_No response_

### SDK version used

.

### Environment details (OS name and version, etc.)

.

Start with the two linked generated AWS CDK Python documentation pages and compare the displayed property name with the expected memory_limit_mib. Trace the jsii name conversion or Python documentation generation entry point responsible for that output, then verify that both pages render the property without the extra underscore.

Written by the indexing model from the issue text.