Change snippits.py to need less altering when copy and pasted

[Michael-fore]

Just opened this because in the PR default comment it asked to create an issue before creating a PR.

In short, it would just be nice to have less typing needed when copying a snippet.

def get_monitored_resource_descriptor(
    project_id: str, resource_type_name: str
) -> monitored_resource_pb2.MonitoredResourceDescriptor:
    """Prints monitored resource description by type

    Args:
        project_id: Google Cloud project id
        resource_type_name: a monitored resource type

    Returns:
        An object that describes the monitored resource
    """
    # [START monitoring_get_resource]
    from google.cloud import monitoring_v3

    client = monitoring_v3.MetricServiceClient()
    resource_path = (
        f"projects/{project_id}/monitoredResourceDescriptors/{resource_type_name}"
    )
    descriptor = client.get_monitored_resource_descriptor(name=resource_path)
    pprint.pprint(descriptor)
    # [END monitoring_get_resource]
    return descriptor

to

def get_monitored_resource_descriptor(
    project_id: str, resource_type_name: str
) -> monitored_resource_pb2.MonitoredResourceDescriptor:
    """Prints monitored resource description by type

    Args:
        project_id: Google Cloud project id
        resource_type_name: a monitored resource type

    Returns:
        An object that describes the monitored resource
    """
    # [START monitoring_get_resource]
    import time
    from google.cloud import monitoring_v3

   project_id = 'MY_PROJECT_ID' 

    client = monitoring_v3.MetricServiceClient()
    resource_path = (
        f"projects/{project_id}/monitoredResourceDescriptors/{resource_type_name}"
    )
    descriptor = client.get_monitored_resource_descriptor(name=resource_path)
    pprint.pprint(descriptor)
    # [END monitoring_get_resource]
    return descriptor

Super minor but wanted to see if anyone else felt the same way.