diff --git a/kmath-ast/README.md b/kmath-ast/README.md
index 0e375f14d..12d425460 100644
--- a/kmath-ast/README.md
+++ b/kmath-ast/README.md
@@ -24,6 +24,7 @@ For example, the following builder:
 package scientifik.kmath.asm.generated;
 
 import java.util.Map;
+import scientifik.kmath.asm.internal.MapIntrinsics;
 import scientifik.kmath.expressions.Expression;
 import scientifik.kmath.operations.RealField;
 
@@ -37,9 +38,10 @@ public final class AsmCompiledExpression_1073786867_0 implements Expression<Doub
     }
 
     public final Double invoke(Map<String, ? extends Double> arguments) {
-        return (Double)this.algebra.add(((Double)arguments.get("x")).doubleValue(), 2.0D);
+        return (Double)this.algebra.add(((Double)MapIntrinsics.getOrFail(arguments, "x", (Object)null)).doubleValue(), 2.0D);
     }
 }
+
 ```
 
 ### Example Usage
diff --git a/kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/internal/classWriters.kt b/kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/internal/classWriters.kt
index 00093aaa7..7f0770b28 100644
--- a/kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/internal/classWriters.kt
+++ b/kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/internal/classWriters.kt
@@ -3,6 +3,7 @@ package scientifik.kmath.asm.internal
 import org.objectweb.asm.ClassWriter
 import org.objectweb.asm.FieldVisitor
 
+@Suppress("FunctionName")
 internal inline fun ClassWriter(flags: Int, block: ClassWriter.() -> Unit): ClassWriter =
     ClassWriter(flags).apply(block)