The UpdateFieldAliasMappingInput input includes various settings.

Table: UpdateFieldAliasMappingInput

schemaIdstringyes The unique identifier of the schema on which the alias mapping exists.
aliasMappingIdstringyes The alias mapping identifier.
namestring  The name of the Alias mapping. This overrides the existing name. If not supplied, the name will be unchanged.
tags[TagsInput]yes The tags of the alias mapping. This will override the existing tags. If not given, the tags will be unchanged.
aliases[AliasInfoInput]yes A list of aliases (see AliasInfoInput table).
originalFieldsToKeep[string]yes Source fields that are aliased, but should still be available in query. Overrides the existing values for this field. If not supplied, this field will be unchanged.

[a] Some arguments may be required, as indicated in this column. For some fields, this column indicates that a result will always be returned for it.