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Counts the number of occurrences of each value in an integer array.

If minlength and maxlength are not given, returns a vector with length tf.reduce_max(arr) + 1 if arr is non-empty, and length 0 otherwise. If weights are non-None, then index i of the output stores the sum of the value in weights at each index where the corresponding value in arr is i.

arr An int32 tensor of non-negative values.
weights If non-None, must be the same shape as arr. For each value in arr, the bin will be incremented by the corresponding weight instead of 1.
minlength If given, ensures the output has length at least minlength, padding with zeros at the end if necessary.
maxlength If given, skips values in arr that are equal or greater than maxlength, ensuring that the output has length at most maxlength.
dtype If weights is None, determines the type of the output bins.

A vector with the same dtype as weights or the given dtype. The bin values.