How did federation pact on indgenous people and Chinese migrants?

The term "Federation Pact" is not commonly used in the context of Indigenous people and Chinese migrants. It's possible you're thinking of a specific historical event or agreement that has a different name.

To help me understand your question better, could you please provide more context? For example, could you tell me:

* Which country or region are you referring to? The relationship between Indigenous people and Chinese migrants can vary significantly across different parts of the world.

* What specific time period are you interested in? The historical context is important to understand the nature of their interaction.

* What kind of "pact" are you referring to? Was it a formal agreement, a social understanding, or a cultural practice?

Once I have more information, I can provide a more accurate and helpful answer.