Long conversion type. Valid values are String and Number (the global types). Defaults to copy the present value, which is a possibly unsafe number without and a Long with a long library.

Enum value conversion type. Only valid value is String (the global type). Defaults to copy the present value, which is the numeric id.

Bytes value conversion type. Valid values are Array and (a base64 encoded) String (the global types). Defaults to copy the present value, which usually is a Buffer under node and an Uint8Array in the browser.

Also sets default values on the resulting object

Sets empty arrays for missing repeated fields even if defaults=false

Sets empty objects for missing map fields even if defaults=false

Includes virtual oneof properties set to the present field's name, if any

Performs additional JSON compatibility conversions, i.e. NaN and Infinity to strings