public SchemaBuilder setDefaultElementSchema(SchemaName defaultElementSchema) {
		this.defaultElementSchema = defaultElementSchema;
		return this;
	}
Define the schema for a child element

@param index the index whose schema to define, or "" for the default
@param schema the schema defining the element
@param origin optional, for diagnostics, an object describing the element schema's origin
@return this builder
Ghidra/Debug/Framework-TraceModeling/src/main/java/ghidra/trace/model/target/schema/SchemaBuilder.java