from typing import List


def split_content_in_lines(file_content:str)->List[str]:
    """
    Splits a block of strings into lines and keeps lines that are not starting with #

    :param file_content:
    :return:
    """
    file_content = file_content.strip()
    if len(file_content) <= 0:
        return []
    collected_entries = []
    for line in file_content.split("\n"):
        line = line.strip()
        if len(line) <= 0:
            continue
        if line[0] == "#":
            continue
        collected_entries.append(line)
    return collected_entries