public Builder parentContext(ValidationContext parentContext) {
            this.parentContext = parentContext;
            return this;
        }
Sets the parent of the new context. May be null if at the root.

@param parentContext Parent of context being built.
@return This object for method chaining.
aws-java-sdk-stepfunctions/src/main/java/com/amazonaws/services/stepfunctions/builder/internal/validation/ValidationContext.java