text: import databases
  from core.config import settings
  from sqlalchemy import MetaData
  from sqlalchemy.ext.declarative import declarative_base
  
  database: databases.core.Database
  if settings.TESTING:
      database = databases.Database(str(settings.DB_URI), force_rollback=True)
  else:
      database = databases.Database(str(settings.DB_URI))
  
  meta = MetaData(
      naming_convention={
          "ix": "ix_%(column_0_label)s",
          "uq": "uq_%(table_name)s_%(column_0_name)s",
          "ck": "ck_%(table_name)s_%(constraint_name)s",
          "fk": "fk_%(table_name)s_%(column_0_name)s_%(referred_table_name)s",
          "pk": "pk_%(table_name)s",
      }
  )
  
  Base = declarative_base(metadata=meta)
  metadata = Base.metadata
  