def to_camel_case(field: str, prefix: str) -> str:
    """Convert a STAR-fusion output column name

    - Remove the prefix (either "Left" or "Right"
    - Convert the first character to lower case
    """
    # Remove side from field name
    new_field = field[len(prefix) :]  # noqa: E203
    # Convert to camelCase
    camel_case = new_field[0].lower() + new_field[1:]
    return camel_case