# Challenge

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## Consecutive zeros

The goal of this challenge is to analyze a binary string consisting of only zeros and ones. Your code should find the biggest number of consecutive zeros in the string. For example, given the string:

```
"1001101000110"
```

The biggest number of consecutive zeros is 3.

Define a function named `consecutive_zeros`

that takes a single parameter,
which is the string of zeros and ones. Your function should return the number
described above.

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