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power(m, n)
Returns m raised to the nth power.
m, n can be any numeric value in the range of -1e308 <=
m, n <= 1e308. Returns null if m = 0 and n < 0. This function can
only be used in a foreach statement.
- If m = 0, n must be a non-negative value.
- If m < 0, n must be an integer value.
- The result of power(m, n) must be within the range expressed by a float64 number.