Using Grant resource returns a TypeError

I have the following code:

import os

import snowflake.connector
from titan import Blueprint
from titan.resources import Database, Grant, Role, RoleGrant, Warehouse

connection_params = {
    "account": os.environ["SNOWFLAKE_ACCOUNT"],
    "user": os.environ["SNOWFLAKE_USER"],
    "password": os.environ["SNOWFLAKE_PASSWORD"],
}

DEFAULT_WAREHOUSE_OPTIONS = {
    "warehouse_size": "XSMALL",
    "auto_suspend": 60,
    "min_cluster_count": 1,
    "max_cluster_count": 1,
}

def dbt():

    prod_db = Database(name="ANALYTICS")

    transforming_wh = Warehouse(
        name="TRANSFORMING_DPG_WH",
        comment="Warehouse used for transformation workloads.",
        **DEFAULT_WAREHOUSE_OPTIONS,
    )

    transformer_role = Role(
        name="TRANSFORMER_ROLE",
        comment=f"Able to read from and write to {prod_db.name} database.",
    )

    grants = [
        RoleGrant(role=transformer_role, to_role="SYSADMIN"),
        Grant(priv="USAGE", on=prod_db, to=transformer_role),
    ]

    return (
        prod_db,
        transforming_wh,
        transformer_role,
        *grants,
    )

if __name__ == "__main__":
    bp = Blueprint(name="setup-dbt", account=os.environ["SNOWFLAKE_ACCOUNT"])
    bp.add(*dbt())
    session = snowflake.connector.connect(**connection_params)
    plan = bp.plan(session)

    # Update snowflake to match blueprint
    bp.apply(session, plan)

When I run this script, I get back the following error:

  File "/Users/dpg/personal/snowflake-dbt-demo-new/.venv/lib/python3.9/site-packages/titan/identifiers.py", line 38, in <listcomp>
    params = "?" + "&".join([f"{k.lower()}={v}" for k, v in self.params.items()]) if self.params else ""
TypeError: __format__ must return a str, not FQN

When I remove the lone Grant resource within my grants variable, I don't have any issues. I may also just be doing something wrong, so apologize in advance if that's the case. Appreciate any help!

Titan-Systems / titan

Using Grant resource returns a TypeError #3