Fix Aps incorrect Doc String

[davit555]

class Aps:
    """Aps dictionary to be included in an APNS payload.

    Args:
        alert: A string or a ``messaging.ApsAlert`` instance (optional).
        badge: A number representing the badge to be displayed with the message (optional).
        sound: Name of the sound file to be played with the message or a
            ``messaging.CriticalSound`` instance (optional).
        content_available: A boolean indicating whether to configure a background update
            notification (optional).
        category: String identifier representing the message type (optional).
        thread_id: An app-specific string identifier for grouping messages (optional).
        mutable_content: A boolean indicating whether to support mutating notifications at
            the client using app extensions (optional).
        custom_data: A dict of custom key-value pairs to be included in the Aps dictionary
            (optional).
    """

    def __init__(self, alert=None, badge=None, sound=None, content_available=None, category=None,
                 thread_id=None, mutable_content=None, custom_data=None):
        self.alert = alert
        self.badge = badge
        self.sound = sound
        self.content_available = content_available
        self.category = category
        self.thread_id = thread_id
        self.mutable_content = mutable_content
        self.custom_data = custom_data

in the doc strings Aps content_available states as boolean property, while in reality we need to send a number either 0 or 1.

Please fix the doc string, we where struggiling to understand why the custom data didn't receive in the message payload because of that incorrect stated doc string. Than you

[google-oss-bot]

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.

[jonathanedey]

The doc string here is correct. While the Aps payload content-available property is a number (1 or 0), in the SDK we accept a boolean and internally map that boolean to the correct digital 1 or 0. https://github.com/firebase/firebase-admin-python/blob/363166bbfdbf72945ace00296c93b7c37773e092/firebase_admin/_messaging_encoder.py#L578-L579

If this is not being represented in the sent payload, please create a new issue with a code snippet to reproduce this.