public static <TExpression> BsonField stdDevPop(final String fieldName, final TExpression expression) {
    """
	Gets a field name for a $group operation representing the sample standard deviation of the values of the given expression
	when applied to all members of the group.
	
	<p>Use if the values encompass the entire population of data you want to represent and do not wish to generalize about
	a larger population.</p>
	
	@param fieldName the field name
	@param expression the expression
	@param <TExpression> the expression type
	@return the field
	@mongodb.driver.manual reference/operator/aggregation/stdDevPop/ $stdDevPop
	@mongodb.server.release 3.2
	@since 3.2
    """
        return accumulator("$stdDevPop", fieldName, expression);
    }
public static <TExpression> BsonField stdDevPop(final String fieldName, final TExpression expression) {
        return accumulator("$stdDevPop", fieldName, expression);
    }
public static < TExpression > BsonField stdDevPop ( final String fieldName , final TExpression expression ) { return accumulator ( "$stdDevPop" , fieldName , expression ) ; }
Gets a field name for a $group operation representing the sample standard deviation of the values of the given expression
when applied to all members of the group.

<p>Use if the values encompass the entire population of data you want to represent and do not wish to generalize about
a larger population.</p>

@param fieldName the field name
@param expression the expression
@param <TExpression> the expression type
@return the field
@mongodb.driver.manual reference/operator/aggregation/stdDevPop/ $stdDevPop
@mongodb.server.release 3.2
@since 3.2
Gets a field name for a $group operation representing the sample standard deviation of the values of the given expression when applied to all members of the group .