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.venv/Lib/site-packages/pandas/_libs/tslibs/conversion.pxd

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+from cpython.datetime cimport (
+    datetime,
+    tzinfo,
+)
+from numpy cimport (
+    int32_t,
+    int64_t,
+    ndarray,
+)
+
+from pandas._libs.tslibs.np_datetime cimport npy_datetimestruct
+
+
+cdef class _TSObject:
+    cdef:
+        npy_datetimestruct dts      # npy_datetimestruct
+        int64_t value               # numpy dt64
+        object tzinfo
+        bint fold
+
+
+cdef convert_to_tsobject(object ts, tzinfo tz, str unit,
+                         bint dayfirst, bint yearfirst,
+                         int32_t nanos=*)
+
+cdef _TSObject convert_datetime_to_tsobject(datetime ts, tzinfo tz,
+                                            int32_t nanos=*)
+
+cdef int64_t get_datetime64_nanos(object val) except? -1
+
+cpdef datetime localize_pydatetime(datetime dt, tzinfo tz)
+cdef int64_t cast_from_unit(object ts, str unit) except? -1
+cpdef (int64_t, int) precision_from_unit(str unit)
+
+cdef int64_t normalize_i8_stamp(int64_t local_val) nogil