TITLE countEntities
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TEXT --{
int countEntities(position, radius, entities)
int countEntities(x, y, z, radius, entities)

Returns the number of matching entities in the given radius.

- position: The position of the block
- x, y, z (int): The coordinates of the block
- radius (float): The radius to look for entities
- entities (string): The entities to search for. Allowed values are 'hostile', 'animal', 'mob', 'player', 'item', 'all', any entityID and any entity name. You can give multiple values by dividing them with a ','
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