find an extension by containing type and field number . concode_field_sep boolean eagerlyParseMessageSets concode_elem_sep int number concode_elem_sep Map<ObjectIntPair,GeneratedMessageLite.GeneratedExtension<?,?>> extensionsByNumber concode_elem_sep ExtensionRegistryLite EMPTY concode_elem_sep Object object concode_field_sep void add concode_elem_sep boolean isEagerlyParseMessageSets concode_elem_sep ExtensionRegistryLite getUnmodifiable concode_elem_sep int hashCode concode_elem_sep boolean equals concode_elem_sep ExtensionRegistryLite newInstance concode_elem_sep void setEagerlyParseMessageSets concode_elem_sep ExtensionRegistryLite getEmptyRegistry
GeneratedMessageLite . GeneratedExtension < ContainingType , ? > function ( final ContainingType arg0 , final int arg1 ) { return ( GeneratedMessageLite . GeneratedExtension < ContainingType , ? > ) extensionsByNumber . get ( new ObjectIntPair ( arg0 , arg1 ) ) ; }