def deletes_bucket_files(bucket, gcs_directory):
    """Deletes all files within a specific directory in a Google Cloud Storage Bucket.

    Args:
        bucket: A storage bucket object specifying a Google Cloud Storage bucket.
        gcs_directory: A string containing the location for directory within a Google Cloud Storage bucket.

    Returns:
        None.
    """

    # get all files currently in the directory
    gcs_directory_files = [file.name for file in bucket.list_blobs(prefix=gcs_directory)]

    # delete directory files
    for _ in gcs_directory_files:
        blob = bucket.blob(_)
        blob.delete()

    return None