Create database using Alembic

I have database migrations that use database1. I'm using it for Alembic for migrations.

How do I create a database database1 before running alembic?

I've created a database infrastructure using CloudFormation. And when we run the first migration, I need to run SQL create database database1 or something equivalent.

I ended up using @SuperShoot's advice. I modified my CFT to include below snipppet

  "Parameters": {
    "DBName": {
      "Default": "<database name>",
      "Description": "The database name",
      "Type": "String",
      ...
    },
    ...
  }, 
  "Resources": {
   "RDSinstance": {
      "Type": "AWS::RDS::DBInstance",
      "Properties": {
        "DBName": {
          "Ref": "DBName"
        },
        ...
      }
    }, 
    ...
  }