public Builder mergeBlueprint(com.google.cloud.telcoautomation.v1.Blueprint value) {
      if (blueprintBuilder_ == null) {
        if (((bitField0_ & 0x00000001) != 0)
            && blueprint_ != null
            && blueprint_ != com.google.cloud.telcoautomation.v1.Blueprint.getDefaultInstance()) {
          getBlueprintBuilder().mergeFrom(value);
        } else {
          blueprint_ = value;
        }
      } else {
        blueprintBuilder_.mergeFrom(value);
      }
      if (blueprint_ != null) {
        bitField0_ |= 0x00000001;
        onChanged();
      }
      return this;
    }
<pre>
Required. The `blueprint` to update.
</pre>

<code>
.google.cloud.telcoautomation.v1.Blueprint blueprint = 1 [(.google.api.field_behavior) = REQUIRED];
</code>
java-telcoautomation/proto-google-cloud-telcoautomation-v1/src/main/java/com/google/cloud/telcoautomation/v1/UpdateBlueprintRequest.java