docs: Mintlify MDX docs + docs.json; bump Speakeasy to 1.787.0 (#382)

docs/operations/inputunion.mdx

@@ -0,0 +1,39 @@
+---
+title: "InputUnion"
+---
+
+Text, token, or multimodal input(s) to embed
+
+
+## Supported Types
+
+### `str`
+
+```python
+value: str = /* values here */
+```
+
+### `List[str]`
+
+```python
+value: List[str] = /* values here */
+```
+
+### `List[float]`
+
+```python
+value: List[float] = /* values here */
+```
+
+### `List[List[float]]`
+
+```python
+value: List[List[float]] = /* values here */
+```
+
+### `List[operations.Input]`
+
+```python
+value: List[operations.Input] = /* values here */
+```
+