I followed the instructions for installing localstack running the following command:
`python3 -m pip install localstack`

Then, I ran localstack:
`python3 -m localstack.cli.main`

Which throws the following error:
`ImportError: cannot import name 'Literal' from 'typing' (/usr/lib64/python3.7/typing.py)`
or os.environ.get("SERVICE_INSTANCES_PORTS_END")
    or (EXTERNAL_SERVICE_PORTS_START + 50)
)
LAMBDA_JAVA_OPTS = os.environ.get("LAMBDA_JAVA_OPTS", "").strip()
KINESIS_SHARD_LIMIT = os.environ.get("KINESIS_SHARD_LIMIT", "").strip() or "100"
KINESIS_LATENCY = os.environ.get("KINESIS_LATENCY", "").strip() or "500"
KINESIS_MOCK_PERSIST_INTERVAL = os.environ.get("KINESIS_MOCK_PERSIST_INTERVAL", "").strip() or "5s"
KINESIS_PROVIDER = os.environ.get("KINESIS_PROVIDER") or "kinesis-mock"
SYNCHRONOUS_SNS_EVENTS = is_env_true("SYNCHRONOUS_SNS_EVENTS")
SYNCHRONOUS_SQS_EVENTS = is_env_true("SYNCHRONOUS_SQS_EVENTS")
SYNCHRONOUS_API_GATEWAY_EVENTS = is_env_not_false("SYNCHRONOUS_API_GATEWAY_EVENTS")
SYNCHRONOUS_KINESIS_EVENTS = is_env_not_false("SYNCHRONOUS_KINESIS_EVENTS")
SYNCHRONOUS_DYNAMODB_EVENTS = is_env_not_false("SYNCHRONOUS_DYNAMODB_EVENTS")
KINESIS_ERROR_PROBABILITY = float(os.environ.get("KINESIS_ERROR_PROBABILITY", "").strip() or 0.0)
DYNAMODB_ERROR_PROBABILITY = float(os.environ.get("DYNAMODB_ERROR_PROBABILITY", "").strip() or 0.0)
DYNAMODB_READ_ERROR_PROBABILITY = float(
    os.environ.get("DYNAMODB_READ_ERROR_PROBABILITY", "").strip() or 0.0
)
DYNAMODB_WRITE_ERROR_PROBABILITY = float(
    os.environ.get("DYNAMODB_WRITE_ERROR_PROBABILITY", "").strip() or 0.0
)
DYNAMODB_HEAP_SIZE = os.environ.get("DYNAMODB_HEAP_SIZE", "").strip() or "256m"
DYNAMODB_SHARE_DB = int(os.environ.get("DYNAMODB_SHARE_DB") or 0)
SQS_DELAY_RECENTLY_DELETED = is_env_true("SQS_DELAY_RECENTLY_DELETED")
SQS_PORT_EXTERNAL = int(os.environ.get("SQS_PORT_EXTERNAL") or 0)
SQS_ENDPOINT_STRATEGY: Literal["off", "domain", "path"] = (
    os.environ.get("SQS_ENDPOINT_STRATEGY", "") or "off"
)
HOSTNAME_FROM_LAMBDA = os.environ.get("HOSTNAME_FROM_LAMBDA", "").strip()
LAMBDA_REMOTE_DOCKER = is_env_true("LAMBDA_REMOTE_DOCKER")