Data type routines

Hint

`can_cast`	Returns `True` if cast between data types can occur according to the casting rule.
`result_type`	result_type(*arrays_and_dtypes)
`common_type`	Return a scalar type which is common to the input arrays.

Creating data types

dtype(dtype, align=False, copy=False, [metadata])

`finfo`	Returns machine limits for floating-point data types.
`iinfo`	Returns machine limits for integer data types.

`isdtype`	Returns a boolean indicating whether a provided dtype is of a specified data type kind.
`issubdtype`	Returns `True` if the first argument is a type code lower/equal in type hierarchy.