% This is generated by ESQL's AbstractFunctionTestCase. Do no edit it. See ../README.md for how to regenerate it.
Parameters
string
: The string from which to return a substring.
length
: The number of characters to return.
% This is generated by ESQL's AbstractFunctionTestCase. Do no edit it. See ../README.md for how to regenerate it.
Parameters
string
: The string from which to return a substring.
length
: The number of characters to return.